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Sarmiento Formation

{{Short description|Geologic formation in Chubut Province, Argentina}}

{{Infobox rockunit

| name = Sarmiento Formation

| type =

| period = Cenozoic

| age = Bartonian-Burdigalian
(Casamayoran-Colhuehuapian)
~{{fossil range|50|17.5}}

|image = Geographic location of Cabeza Blanca locality.png

| prilithology = Sandstone, mudstone

| otherlithology = Limestone

| namedfor = Sarmiento, Chubut

| region =

| country = Argentina

| unitof =

| subunits = Colhué Huapí Member, Gran Barranca Member, Puesto Almendra Member, Rosado Member, Trelew Member, and Vera Member

| underlies = Chenque Formation
 Gaiman Formation

| overlies = Koluel Kaike Formation
(Río Chico Group)

| thickness =319 metres

| extent = Golfo San Jorge Basin

| area =

| map = Sarmiento Formation Map.jpg

| map_caption = Location of the Sarmiento Formation within Argentina

| location_ts =

| coordinates_ts =

| paleocoordinates_ts =

| region_ts = Chubut Province

| country_ts = Argentina

| thickness_ts = {{convert|319|m|ft}} (tuffs)

}}

The Sarmiento Formation (Spanish: Formación Sarmiento), in older literature described as the Casamayor Formation, is a geological formation in Chubut Province, Argentina, in central Patagonia, which spans around 30 million years from the mid-Eocene to the early Miocene. It predominantly consists of pyroclastic deposits,{{Cite book |last=H.) |first=Madden, R. H. (Richard |url=http://worldcat.org/oclc/499130096 |title=The paleontology of Gran Barranca : evolution and environmental change through the middle Cenozoic of Patagonia |date=2010 |publisher=Cambridge University Press |isbn=978-0-521-87241-6 |chapter=Physical stratigraphy of the Sarmiento Formation (middle Eocene – lower Miocene) at Gran Barranca, central Patagonia |oclc=499130096}} which were deposited in a semi-arid environment.{{Cite book |last=Madden |first=Richard H. |url=http://worldcat.org/oclc/499130096 |title=The paleontology of Gran Barranca : evolution and environmental change through the middle Cenozoic of Patagonia |date=2010 |publisher=Cambridge University Press |isbn=978-0-521-87241-6 |chapter=Loessic and fluvial sedimentation in Sarmiento Formation pyroclastics, middle Cenozoic of central Patagonia |oclc=499130096}} It is divided up into a number of members. The diverse fauna of the Sarmiento Formation, including a variety of birds, crocodilians, turtles and snakes, also includes many mammals such as South American native ungulates (notoungulates, litopterns, astrapotheres) as well as armadillos, and caviomorph rodents.{{Cite journal |last1=Dozo |first1=María Teresa |last2=Ciancio |first2=Martín |last3=Bouza |first3=Pablo José |last4=Martínez |first4=Gastón |date=2014 |title=New association of Paleogene Mammals in Eastern of Patagonia (Chubut Province, Argentina): biochronological and paleobiogeographical implications. |url=http://www.andeangeology.cl/index.php/revista1/article/view/V41n1-a09/html |journal=Andean Geology |volume=41 |issue=1|doi=10.5027/andgeoV41n1-a09|doi-access=free|hdl=11336/27088 |hdl-access=free }} 50x50px Material was copied from this source, which is available under a Creative Commons Attribution 3.0 International License

Paleofauna

=Amphibians=

class="wikitable" align="center" width="75%"
Name

! Species

! Member/Locality

! Material

! Notes

! Image

Anura indet.

|Currently undescribed

|Upper Puesto Almendra Member

|

|

|

Calyptocephalella{{Cite journal |last1=Schaeffer |first1=Bobb |last2=Simpson |first2=George Gaylord |date=1949 |title=Anurans from the early Tertiary of Patagonia. |url=https://digitallibrary.amnh.org/handle/2246/404 |journal=American Museum Novitates |language=en-US |issue=2 |pages=44–68|hdl=2246/404 }}

|C. canqueli

|Upper Puesto Almendra Member

|

|A calyptocephalellid frog

|thumb

Eupsophus

|E. sp.

|Upper Puesto Almendra Member

|

|An alsodid frog

|thumb

Neoprocoela

|N. edentatus

|Upper Puesto Almendra Member

|

|A leptodactylid frog

|

= Birds =

class="wikitable" align="center" width="75%"
Name

! Species

! Member/Locality

! Material

! Notes

! Image

Andrewsornis{{Cite journal |last1=Alvarenga |first1=Herculano M. F. |last2=Höfling |first2=Elizabeth |date=2003 |title=Systematic revision of the Phorusrhacidae (Aves: Ralliformes) |journal=Papéis Avulsos de Zoologia |language=en |volume=43 |issue=4 |pages=55–91 |doi=10.1590/S0031-10492003000400001 |issn=0031-1049 |doi-access=free}}

|A. abotti

|Upper Puesto Almendra Member

|

|A phorusrhacid

|thumb

Loxornis

|L. clivus

|Upper Puesto Almendra Member

|

|

|

Physornis

|P. sp.

|Upper Puesto Almendra Member

|

|A phorusrhacid

|

Telmabates{{Cite journal |last=Howard |first=Hildegarde |date=1955 |title=A new wading bird from the Eocene of Patagonia. |url=https://digitallibrary.amnh.org/handle/2246/2434 |journal=American Museum Novitates |language=en-US |issue=1710|hdl=2246/2434 }}

|T. antiquus

|Upper Puesto Almendra Member

|

|A presbyornithid

|

=Reptiles=

== Crocodylomorphs ==

class="wikitable" align="center" width="75%"
Name

! Species

! Member/Locality

! Material

! Notes

! Image

Eocaiman{{Cite journal |last=Simpson |first=George Gaylord |date=1933 |title=A new crocodilian from the Notostylops beds of Patagonia. |url=https://digitallibrary.amnh.org/handle/2246/2050 |journal=American Museum Novitates |language=en-US |number=623|hdl=2246/2050 }}

|E. cavernensis

|Gran Barranca Member

|

|A caiman

|

Sebecus{{Cite journal |last1=Pol |first1=Diego |last2=Leardi |first2=Juan M. |last3=Lecuona |first3=Agustina |last4=Krause |first4=Marcelo |date=2012-03-01 |title=Postcranial anatomy of Sebecus icaeorhinus (Crocodyliformes, Sebecidae) from the Eocene of Patagonia |url=https://doi.org/10.1080/02724634.2012.646833 |journal=Journal of Vertebrate Paleontology |volume=32 |issue=2 |pages=328–354 |doi=10.1080/02724634.2012.646833 |bibcode=2012JVPal..32..328P |s2cid=86565764 |issn=0272-4634|url-access=subscription }}

| S. icaeorhinus

|Gran Barranca Member

|Disarticulated skull, mandible, and some postcranial material.

|A sebecid notosuchian.

|thumb

== Lepidosaurs ==

class="wikitable" align="center" width="75%"
Name

! Species

! Member/Locality

! Material

! Notes

! Image

Chubutophis{{Cite journal |last=Albino |first=Adriana Maria |date=1993-07-01 |title=Snakes from the Paleocene and Eocene of Patagonia (Argentina): Paleoecology and coevolution with mammals |url=https://doi.org/10.1080/10292389309380443 |journal=Historical Biology |volume=7 |issue=1 |pages=51–69 |doi=10.1080/10292389309380443 |bibcode=1993HBio....7...51A |issn=0891-2963|url-access=subscription }}

|C. grandis

|Gran Barranca Member

|

|A boa snake

|

Gaimanophis{{Cite journal |last=Albino |first=Adriana M. |date=1996-04-24 |title=Snakes from the Miocene of Patagonia (Argentina) Part I: The Booidea |url=http://www.schweizerbart.de/papers/njgpa/detail/199/90067/Snakes_from_the_Miocene_of_Patagonia_Argentina_Par?af=crossref |journal=Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen |language=en |volume=199 |issue=3 |pages=417–434 |doi=10.1127/njgpa/199/1996/417 |issn=0077-7749|url-access=subscription }}

|G. tenuis

|Trelew Member

|

|A boa snake

|

Iguanidae indet.{{Cite journal |last1=Albino |first1=Adriana María |last2=Brizuela |first2=Santiago |date=2014-07-03 |title=First record of squamate reptiles from the Oligocene of South America |url=https://doi.org/10.1080/03115518.2014.886029 |journal=Alcheringa: An Australasian Journal of Palaeontology |volume=38 |issue=3 |pages=412–421 |doi=10.1080/03115518.2014.886029 |bibcode=2014Alch...38..412A |s2cid=129231690 |issn=0311-5518|hdl=11336/34599 |hdl-access=free }}

|Currently undescribed

|Upper Puesto Almendra Member

|

|

|

Madtsoia{{Cite journal |last=Simpson |first=George Gaylord |date=1933 |title=A new fossil snake from the Notostylops beds of Patagonia. |url=https://digitallibrary.amnh.org/handle/2246/354 |language=en-US |volume=67 |issue=1 |pages=1–22|hdl=2246/354 }}

|M. bai

M. sp.

|Gran Barranca and Upper Puesto Almendra Members

|

|A madtsoiid snake

|thumb

Waincophis{{Cite journal |last=Albino |first=Adriana M. |date=1987 |title=Un nuevo Boidae (Reptilia: Serpentes) del Eoceno temprano de la Provincia del Chubut, Argentina |journal=Ameghiniana |url=https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/1849 |language=es |volume=24 |issue=1–2 |pages=61–66 |issn=1851-8044}}

|W. australis

|Gran Barranca Member

|

|A boa snake

|

== Testudines ==

class="wikitable" align="center" width="75%"
Name

! Species

! Member

! Material

! Notes

! Image

Chelonoidis{{Cite journal |last1=Fuente |first1=Marcelo S. De La |last2=Vucetich |first2=María G. |date=1998 |title=Nuevos materiales de tortugas cryptodiras miocenas del Valle de Chubut, Argentina. |journal=Ameghiniana |url=https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/2434 |language=en |volume=35 |issue=2 |pages=211–215 |issn=1851-8044}}

|C. gringorum

|Trelew Member

|

|A tortoise

|

Gaffneylania{{Cite journal |last1=Sterli |first1=Juliana |last2=de la Fuente |first2=Marcelo S. |last3=Krause |first3=J. Marcelo |date=2015 |title=A new turtle from the Palaeogene of Patagonia (Argentina) sheds new light on the diversity and evolution of the bizarre clade of horned turtles (Meiolaniidae, Testudinata): A new horned turtle from Patagonia |journal=Zoological Journal of the Linnean Society |language=en |volume=174 |issue=3 |pages=519–548 |doi=10.1111/zoj.12252|doi-access=free |hdl=11336/41594 |hdl-access=free }}

|G. auricularis

|

|

| rowspan="2" |A meiolaniid stem-turtle

|

Niolamia

|N. argentina

|Gran Barranca Member

|

|File:Niolamia.jpg

Testudininae indet.{{Cite journal |last1=De Broin |first1=F |last2=De la Fuente |first2=M. |date=1993 |title=Les tortues fossiles d'Argentine:synthèse |url=https://www.researchgate.net/publication/257696635 |journal=Les tortues fossiles d'Argentine: Synthèse |volume=79 |issue=3 |pages=169–232 |issn=0753-3969}}

|Currently undescribed

| Puesto Almendra Member

|

|A tortoise

=Mammals=

== Meridiolestidans ==

class="wikitable" align="center" width="75%"
Name

! Species

! Member/Locality

! Material

! Notes

! Image

Necrolestes{{Cite journal |last1=Goin |first1=Francisco J. |last2=Abello |first2=María Alejandra |date=February 2013 |title=Los Metatheria Sudamericanos de Comienzos Del Neógeno (Mioceno Temprano, Edad MamÍFero Colhuehuapense): Microbiotheria y Polydolopimorphia |journal=Ameghiniana |volume=50 |issue=1 |pages=51–78 |doi=10.5710/AMGH.9.11.2012.570 |issn=0002-7014 |doi-access=free|hdl=11336/76812 |hdl-access=free }}

|N. mirabilis

|Colhué Huapí Member

|

|Youngest known meridiolestidan

|File:Necrolestes.svg

== Meridiungulates ==

class="wikitable" align="center" width="75%"
Name

! Species

! Member/Locality

! Material

! Notes

! Image

Acoelodus

|A proclivus

|Gran Barranca Member

|

|A notoungulate of uncertain affinities.

|

Acoelohyrax

|A. sigma

A. complicatissimus

|Gran Barranca Member

|

|A notohippid notoungulate

|

Adiantoides{{Cite journal |last=Soria |first=Miguel Fernando |date=1980 |title=Una nueva y problemática forma de ungulado del Casamayorense. |journal=Actas del Segundo Congreso Argentino de Paleontología y Bioestratigrafía y Primer Congreso Latinoamericano de Paleontología}}

| A. magnus

| Gran Barranca Member

|

|An indaleciid litoptern

|thumb

Albertogaudrya

|A. carahuasensis

A. unica

|Gran Barranca Member

|

|An astrapothere

|thumb

Amilnedwardsia

| A. brevicula

|Gran Barranca Member

|

|

|

Ancylocoelus{{Cite book |last1=Madden |first1=Richard H. |chapter-url=https://books.google.com/books?id=oY7wkK6lV4cC&dq=The+Leontiniidae+%28Mammalia%2C+Notoungulata%29+from+the+Sarmiento+Formation+at+Gran+Barranca%2C+Chubut+Province%2C+Argentina.&pg=PR5 |title=The Paleontology of Gran Barranca: Evolution and Environmental Change Through the Middle Cenozoic of Patagonia |last2=Carlini |first2=Alfredo A. |last3=Vucetich |first3=Maria Guiomar |last4=Kay |first4=Richard F. |date=2010-06-17 |publisher=Cambridge University Press |isbn=978-0-521-87241-6 |language=en |chapter=The Leontiniidae (Mammalia, Notoungulata) from the Sarmiento Formation at Gran Barranca, Chubut Province, Argentina.}}

|A. frequens

|Puesto Almendra Member

|

|A leontiniid notoungulate

|

Anisolambda {{Cite journal |last=Simpson |first=George Gaylord |date=1967 |title=The beginning of the age of mammals in South America. Part 2, Systematics : Notoungulata, concluded (Typotheria, Hegetotheria, Toxodonta, Notoungulata incertae sedis), Astrapotheria, Trigonostylopoidea, Pyrotheria, Xenungulata, Mammalia incertae sedis. |url=https://digitallibrary.amnh.org/handle/2246/1621 |journal=American Museum Novitates |language=en-US |issue=137|hdl=2246/1621 }}

| A. amel

A. fissidens

|Gran Barranca Member

|

|A proterotheriid litoptern

|

Anisotemnus

|A. distentus

|Gran Barranca and Vera Members

|

|An isotemnid notoungulate

Antepithecus{{Cite journal |last1=Vera |first1=Bárbara |last2=Cerdeño |first2=Esperanza |date=2014-05-01 |title=Systematic revision of Antepithecus brachystephanus Ameghino, 1901, and dental eruption sequence in Eocene "notopithecines" (Notoungulata) from Patagonia |url=https://www.sciencedirect.com/science/article/pii/S0016699514000242 |journal=Geobios |language=en |volume=47 |issue=3 |pages=165–181 |doi=10.1016/j.geobios.2014.02.001 |bibcode=2014Geobi..47..165V |issn=0016-6995|hdl=11336/32042 |hdl-access=free }}

| A. brachystephanus

A. innexus

|Gran Barranca and Rosado Members

|

|A notopithecid notoungulate

Archaeohyrax

|A. patagonicus

|Gran Barranca and Puesto Almendra Members

|

|A archaeohyracid notoungulate

|thumb

Archaeophylus{{Cite journal |last=Ameghino |first=Florentino |author-link=Florentino Ameghino |date=1897 |title=Mammiféres crétacés de l'Argentine (Deuxième contribution à la connaissance de la fauna mammalogique de couches à Pyrotherium) [Cretaceous mammals of Argentina (second contribution to the knowledge of the mammalian fauna of the Pyrotherium Beds)]. |journal=Boletin Instituto Geografico Argentino |volume=18 |issue=4–9 |pages=406–521}}

|A. patrius

|Puesto Almendra Member

|

|A interatheriid notoungulate

|

Archaeopithecus

| A. rogeri

|Gran Barranca Member

|

|A archaeopithecid notoungulate

|

Archaeotypotherium

|A. propheticus

|Puesto Almendra and Vera Members

|

|An archaeohyracid notoungulate

|

Argyrohippus{{Cite book |last1=G.M López |chapter-url=https://books.google.com/books?id=oY7wkK6lV4cC&pg=PA143 |title=The Paleontology of Gran Barranca. Evolution and Environmental Change Through the Middle Cenozoic of Patagonia |last2=A.M. Ribeiro |last3=M. Bond |publisher=Cambridge University Press |year=2010 |isbn=978-0-521-87241-6 |editor-last=Richard H. Madden |pages=143–151 |chapter=The Notohippidae (Mammalia, Notoungulata) from Gran Barranca: preliminary considerations |editor-last2=Alfredo A. Carlini |editor-last3=Maria Guiomar Vucetich |editor-last4=Richard F. Kay}}

|A. boulei

A. fraterculus

A. praecox

|Colhué Huapí and Puesto Almendra Members

|

|

|

Argyrohyrax{{Cite journal |last1=Vera |first1=Bárbara |last2=Cerdeño |first2=Esperanza |last3=Reguero |first3=Marcelo |date=2017-07-04 |title=The Interatheriinae from the Late Oligocene of Mendoza (Argentina), with comments on some Deseadan Interatheriidae |url=https://www.researchgate.net/publication/307566526 |journal=Historical Biology |volume=29 |issue=5 |pages=607–626 |doi=10.1080/08912963.2016.1220945 |bibcode=2017HBio...29..607V |hdl=11336/49742 |s2cid=88869146 |issn=0891-2963|hdl-access=free }}{{Cite journal |last1=Hernández Del Pino |first1=Santiago |last2=Seoane |first2=Federico |last3=Cerdeño |first3=Esperanza |date=2022 |title=New craniodental information and taxonomic decisions of the typotherians (Notoungulata) from the late Oligocene of Mendoza, central-western Argentina |journal=Acta Palaeontologica Polonica |language=en |volume=67 |doi=10.4202/app.00974.2022 |issn=0567-7920|doi-access=free|hdl=11336/202725 |hdl-access=free }}

|A. proavus

|Puesto Almendra Member

|

|

|

Asmodeus

|A. osborni

|Puesto Almendra Member

|

|

|

Astraponotus

| A. assymmetrus

A. dicksoni

A. dilatatus

A. holdichi

A. thompsoni

|Gran Barranca Member

|

|

|thumb

Astrapotherium{{Cite book |last1=Madden |first1=Richard H. |chapter-url=https://books.google.com/books?id=oY7wkK6lV4cC&dq=Colhuehuapian+Astrapotheriidae+%28Mammalia%29+from+Gran+Barranca+south+of+Lake+Colhue+Huapi.&pg=PA182 |title=The Paleontology of Gran Barranca: Evolution and Environmental Change Through the Middle Cenozoic of Patagonia |last2=Carlini |first2=Alfredo A. |last3=Vucetich |first3=Maria Guiomar |last4=Kay |first4=Richard F. |date=2010-06-17 |publisher=Cambridge University Press |isbn=978-0-521-87241-6 |language=en |chapter=Colhuehuapian Astrapotheriidae (Mammalia) from Gran Barranca south of Lake Colhue Huapi.}}

| A. ruderarium

|Colhué Huapí member

|

|

|thumb

Astrapotheriidae indet.

|Currently undescribed

|Colhué Huapí Member

|

|

|

Bryanpattersonia

|B. sulcidens

|Puesto Almendra and Vera Members

|

|Genus probably a synonym of Archaeotypotherium

|

Cochilius

|C. brevirostris

C. fumensis

C. volvens

|Colhué Huapí and Puesto Almendra Members

|

|

|thumb

Colpodon

| C. distinctus

C. propinquus

C. sp.

|Colhué Huapí Member

|

|A leontiniid.

|

Coniopternium

|C. andinum

|Puesto Almendra Member

|

|A macraucheniid litoptern

|thumb

Cramauchenia{{Cite journal |last1=Dozo, M.T. |last2=Vera, B. |year=2010 |title=First skull and associated postcranial bones of Macraucheniidae (Mammalia, Litopterna) from the Deseadan SALMA (late Oligocene) of Cabeza Blanca (Chubut, Argentina) |url=https://www.researchgate.net/publication/233015768 |journal=Journal of Vertebrate Paleontology |volume=30 |issue=6 |pages=1818–1826 |doi=10.1080/02724634.2010.521534|bibcode=2010JVPal..30.1818D |s2cid=86291795 |hdl=11336/93665 |hdl-access=free }}

|C. normalis

|Colhué Huapí and Puesto Almendra Members

| Nearly complete skull and humerus

|A macraucheniid litoptern

|thumb

Cramaucheniinae indet.

|Currently undescribed

|Puesto Almendra Member

|

|

|

Deuterotherium{{Cite journal |last1=Marshall |first1=Larry G. |last2=Cifelli |first2=Richard L. |last3=Drake |first3=Robert E. |last4=Curtis |first4=Garniss H. |date=1986-07-14 |title=Vertebrate paleontology, geology, and geochronology of the Tapera de López and Scarritt Pocket, Chubut Province, Argentina |url=https://www.cambridge.org/core/journals/journal-of-paleontology/article/abs/vertebrate-paleontology-geology-and-geochronology-of-the-tapera-de-lopez-and-scarritt-pocket-chubut-province-argentina/24C0BFFF7738EC8F1DB58D3E4B5CA103 |journal=Journal of Paleontology |language=en |volume=60 |issue=4 |pages=920–951 |doi=10.1017/S0022336000043080 |bibcode=1986JPal...60..920M |s2cid=132768663 |issn=0022-3360|url-access=subscription }}

|D. distichum

|Puesto Almendra Member

|

|

|

Didolodus{{Cite journal |last=Cifelli |first=Richard |date=1985 |title=Biostratigraphy of the Casamayoran, Early Eocene of Patagonia. |url=https://digitallibrary.amnh.org/bitstream/handle/2246/5227/N2820.pdf?sequence=1&isAllowed=y |journal=American Museum Novitates |issue=2820|pages=1–26 |hdl=2246/5227 |issn=0003-0082}}

| D. multicuspsis

D. magnus

D. minor

D. latigonus

|Gran Barranca and Rosado Members

|All species mostly known from dental remains

|A didolodontid.

|thumb

Edvardotrouessartia

|E. sola

|Gran Barranca Member

|

|

|thumb

Eohyrax

| E. isotemnoides

E. platyodus

E. praerusticus

|Gran Barranca and Rosado Members

|

|

|

Eolicaphrium

|E. primarium

|Gran Barranca Member

|

|A litoptern

|

Eomorphippus

|E. bondi

E. neilopdykei

E. obscurus

|Rosado and Lower Puesto Almendra members

|

|A notohippid notoungulate

|thumb

Eopachyrucos

| E. pliciformis

E. pliciferus

| Rosado and Puesto Almendra Members

|Mandibular and skull remains

|An interatheriid.

|thumb

Ernestohaeckelia

| E. aculeata

E. acutidens

|Gran Barranca Member

|

|A litoptern

|

Ernestokokenia

|E. nitida

E. patagonica

|Gran Barranca Member

|Mostly known from dental remains

|A didolodontid.

Eurygenium{{Cite journal |last1=Marani |first1=Hernán |last2=Dozo |first2=María Teresa |date=2008-02-22 |title=El cráneo más completo de Eurygenium latirostris Ameghino, 1895 (Mammalia, Notoungulata), un Notohippidae del Deseadense (Oligoceno Tardío) de la Patagonia, Argentina |url=https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/715 |journal=Ameghiniana |volume=45 |issue=3 |pages=619–626 |issn=0002-7014}}

|E. latirostris

|Puesto Almendra Member

|

|A notohippid notoungulate

|

Guilielmofloweria

|G. plicata

|Gran Barranca Member

|

|A proterotheriid.

|

Guilielmoscottia

|G. plicifera

|Rosado and Vera Members

|

|A interatheriid notoungulate

|

Hegetotheriopsis{{Cite journal |last1=Kramarz |first1=Alejandro Gustavo |last2=Paz |first2=Ernesto Rodrigo |date=2013 |title=Un Hegetotheriidae (Mammalia, Notoungulata) basal del Mioceno temprano de Patagonia |url=http://www.scielo.org.mx/scielo.php?script=sci_abstract&pid=S1026-87742013000100013&lng=es&nrm=iso&tlng=es |journal=Revista Mexicana de Ciencias Geológicas |language=es |volume=30 |issue=1 |pages=186–195 |issn=1026-8774}}

| H. sulcatus

|Trelew Member

|

|

|

Hegetotherium

| H. novum

|Trelew Member

|

|A hegetotheriid notoungulate

|thumb

Homalostylops

|H. atavus

H. parvus

|Gran Barranca and Rosado Members

|

|A notostylopid notoungulate

|

Henricofilholia

|H. lustrata

H. cingulata

H. circumdata

H. intercincta

H. vucetichia

|Upper Puesto Almendra Member

|

|An astrapothere

|

Henricosbornia

| H. ampla

H. lophodonta

H. minuta

|Gran Barranca Member

|

|

|

Interatherium{{Cite book |last1=Madden |first1=Richard H. |url=https://books.google.com/books?id=oY7wkK6lV4cC&dq=A+new+mammal+fauna+at+the+top+of+the+Gran+Barranca+sequence+and+its+biochronological+significance&pg=PA264 |title=The Paleontology of Gran Barranca: Evolution and Environmental Change Through the Middle Cenozoic of Patagonia |last2=Carlini |first2=Alfredo A. |last3=Vucetich |first3=Maria Guiomar |last4=Kay |first4=Richard F. |date=2010-06-17 |publisher=Cambridge University Press |isbn=978-0-521-87241-6 |language=en}}

|I. sp.

|Colhué Huapí Member

|

|An interatheriid

|thumb

Isotemnus

|Isotemnus ctalego

Isotemnus haugi

Isotemnus latidens

Isotemnus primitivus

|Gran Barranca Member

|

|

|

Isotemnidae indet.

|Currently undescribed

|Puesto Almendra Member

|

|

|

Lambdaconus

|L. lacerum

|Colhué Huapí Member

|

|

|thumb

Leontinia

|L. gaudryi

L. sp.

|Puesto Almendra Member

|

|

|thumb

Maddenia{{Cite journal |last1=Kramarz |first1=Alejandro G. |last2=Bond |first2=Mariano |date=2009-03-01 |title=A new oligocene astrapothere (mammalia, meridiungulata) from patagonia and a new appraisal of astrapothere there phylogeny |url=https://doi.org/10.1017/S147720190800268X |journal=Journal of Systematic Palaeontology |volume=7 |issue=1 |pages=117–128 |doi=10.1017/S147720190800268X |bibcode=2009JSPal...7..117K |s2cid=85351962 |issn=1477-2019|hdl=11336/102700 |hdl-access=free }}

|M. lapidaria

|Puesto Almendra Member

|

|

|

Maxschlosseria

|M. consumata

M. expansa

M. minima

M. minuta

M. praeterita

M. rusticula

M. septa

|Gran Barranca Member

|

|An oldfieldthomasiid notoungulata

|

Medistylus{{Cite journal |last1=Reguero |first1=Marcelo A. |last2=Dozo |first2=María Teresa |last3=Cerdeño |first3=Esperanza |date=2007 |title=A poorly known rodentlike mammal (Pachyrukhinae, Hegetotheriidae, Notoungulata) from the Deseadan (Late Oligocene) of Argentina. Paleoecology, biogeography, and radiation of the rodentlike ungulates in South America |url=https://www.cambridge.org/core/product/identifier/S0022336000051817/type/journal_article |journal=Journal of Paleontology |volume=81 |issue=6 |pages=1301–1307 |doi=10.1666/05-100.1 |bibcode=2007JPal...81.1301R |s2cid=55259241 |issn=0022-3360|url-access=subscription }}

|M. dorsatus

|Puesto Almendra Member

|

|

|

Morphippus

| M. complicatus

M. fraternus

M. hypselodus

M. imbricatus

M. quadrilobus

|Puesto Almendra Member

|

|

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Notopithecus{{Cite book |last1=Madden |first1=Richard H. |url=https://www.researchgate.net/publication/259571202 |title=The Paleontology of Gran Barranca: Evolution and Environmental Change Through the Middle Cenozoic of Patagonia |last2=Carlini |first2=Alfredo A. |last3=Vucetich |first3=Maria Guiomar |last4=Kay |first4=Richard F. |date=2010-06-17 |publisher=Cambridge University Press |isbn=978-0-521-87241-6 |language=en |chapter=Rodent-like notoungulates (Typotheria) from Gran Barranca, Chubut Province, Argentina: Phylogeny and systematics}}

|N. adapinus

|Gran Barranca and Rosado Members

|

|

|thumb

Notostylops

|N. murinus

N. appressus

N. pendens

N. pigafettai

N. sp.

|Gran Barranca and Rosado Members

|

|

|thumb

Oldfieldthomasia

|O. anfractuosa

O. debilitata

O. parvidens

O. transversa

|Gran Barranca Member

|

|

|

Othnielmarshia

| O. curviristra

O. lacunifera

O. reflexa

|Gran Barranca Member

|

|

|

Pachyrukhos

|P. sp.

|Colhué Huapí Member

|

|

|thumb

Paginula

|P. parca

|Gran Barranca Member

|

|

|

Paramacrauchenia{{Cite journal |last1=Kramarz |first1=Alejandro G. |last2=Bond |first2=Mariano |date=2005 |title=Los Litopterna (Mammalia) de la Formación Pinturas, Mioceno Temprano-Medio de Patagonia |journal=Ameghiniana |url=https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/928 |language=es |volume=42 |issue=3 |pages=611–625 |issn=1851-8044}}

|P. scamnata

P. inexspectata

|Colhué Huapí Member

|

|

|thumb

Parastrapotherium

|P. cingulatum

P. ephebicum

P. holmbergi

P. lemoinei

P. trouessarti

P. sp.

|Colhué Huapí and Puesto Almendra Members

|

|

|thumb

Patagonhippus

|P. canterensis

P. dukei

|Puesto Almendra Member

|

|A notohippid notoungulate

|

Paulogervaisia

|P. inusta

|Gran Barranca and Rosado Members

|

|

|

Peripantostylops

|P. minutus

|Gran Barranca Member

|

|

|

Periphragnis

|P. exauctus

P. sp.

|Rosado Member

|

|

|thumb

Pleurostylodon

|P. complanatus

P. crassiramis

P. modicus

|Gran Barranca Member

|

An isotemnid notoungulate

|

Polymorphis{{Cite journal |last=Simpson |first=George Gaylord |date=1948 |title=The beginning of the age of mammals in South America. Part 1, Introduction: Systematics: Marsupialia, Edentata, Condylarthra, Litopterna and Notioprogonia |url=http://digitallibrary.amnh.org/handle/2246/1632 |journal=Bulletin of the American Museum of Natural History |volume=91 |issue=1 |pages=1–232|hdl=2246/1632 }}

|P. lechei

|Gran Barranca Member

|

A macraucheniid litoptern
Proadiantus{{Cite book |last=Loomis |first=Frederic Brewster |url=https://archive.org/details/deseadoformation00loom/mode/1up?view=theater |title=The Deseado Formation of Patagonia |date=1914 |publisher=Amherst College |pages=1–232 |language=en |doi=10.5962/bhl.title.28110 |lccn=14014187 |oclc=1053693}}

|P. excavatus

|Puesto Almendra Member

|

|

|

Proadinotherium

|P. leptognathus

|Puesto Almendra Member

|

|A toxodontid notoungulate

|thumb

Proargyrohyrax{{Cite journal |last1=Hitz |first1=Ralph B. |last2=Reguero |first2=Marcelo |last3=Wyss |first3=André R. |last4=Flynn |first4=John J. |last5=History |first5=Field Museum of Natural |date=2000 |title=New interatheriines (Interatheriidae, notoungulata) from the Paleogene of central Chile and southern Argentina |url=https://www.biodiversitylibrary.org/bibliography/5169 |journal=Fieldiana|doi=10.5962/bhl.title.5169|volume=42|pages=1–42|doi-access=free|hdl=11336/111062 |hdl-access=free }}

|P. curanderensis

P. sp.

|Vera Member

|

|An interatheriid notoungulate

|thumb

Proectocion

| P. argentinus

P. precisus

|Gran Barranca Member

|

|An adianthid litoptern

|

Progaleopithecus

|P. fissurellatus

P. tournoueri

P. sp.

|Puesto Almendra Member

|

|A interatheriid notoungulate

|

Prohegetotherium

|P. sculptum

P. sp.

|Puesto Almendra Member

|

|

|thumb

Proheptaconus{{Cite journal |last1=Cifelli |first1=Richard |last2=Soria |first2=Miguel Fernando |date=1983 |title=Systematics of the Adianthidae (Litopterna, Mammalia). |url=https://digitallibrary.amnh.org/handle/2246/5255 |journal=American Museum Novitates |language=en-US |issue=2771 |pages=1–25|hdl=2246/5255 }}

|P. patagonicus

|Colhué Huapí and Trelew Members

|

|An adianthid litoptern

|

Prolicaphrium{{Cite journal |last=Ameghino |first=Florentino |date=1902 |title=Première contribution a la connaissance de la faune mammalogique des couches a Colpodon |url=https://www.biodiversitylibrary.org/part/198536 |journal=Boletin de la Academia Nacional de Ciencias en Córdoba, República Argentina |volume=17 |pages=71–141 |issn=0325-2051}}{{Cite journal |last1=Vera |first1=Bárbara Soledad |last2=Fornasiero |first2=Mariagabriella |last3=Del Favero |first3=Letizia |date=December 2015 |title=The Egidio Feruglio's collection in the Museum of Geology and Palaeontology of the University of Padova: its importance to the knowledge of Cenozoic mammals from South America |url=https://www.researchgate.net/publication/290430697 |journal=Museologia Scientifica |volume=9 |pages=35–44 |issn=1123-265X}}

|P. spectabile

P. specillatum

|Colhué Huapí Member

|

|A proterotheriid litoptern

|

Propachyrucos{{Cite journal |last1=Seoane |first1=Federico Damián |last2=Cerdeño |first2=Esperanza |last3=Singleton |first3=Hayley |date=2019-09-01 |title=Re-assessment of the Oligocene genera Prosotherium and Propachyrucos (Hegetotheriidae, Notoungulata) |journal=Comptes Rendus Palevol |language=en |volume=18 |issue=6 |pages=643–662 |doi=10.1016/j.crpv.2019.07.001 |issn=1631-0683 |doi-access=free|bibcode=2019CRPal..18..643S }}

|P. smithwoodwardi

|Puesto Almendra Member

|

|

|

Propyrotherium{{Cite journal |last1=Kramarz |first1=Alejandro G. |last2=Bond |first2=Mariano |date=2014-03-01 |title=Reconstruction of the dentition of Propyrotherium saxeum Ameghino, 1901 (Mammalia, Pyrotheria): taxonomic and phylogenetic implications |url=https://doi.org/10.1080/02724634.2013.799070 |journal=Journal of Vertebrate Paleontology |volume=34 |issue=2 |pages=434–443 |doi=10.1080/02724634.2013.799070 |bibcode=2014JVPal..34..434K |s2cid=86704119 |issn=0272-4634|hdl=11336/29724 |hdl-access=free }}{{Cite journal |last1=Vera |first1=B. |last2=Folino |first2=M. |last3=Soechting |first3=W. |last4=Böttcher |first4=N. |year=2022 |title=New data on Propyrotherium (Mammalia, Pyrotheria) from the middle Eocene age (Chubut, Argentina): anatomy, age constraints, and phylogeny |url=https://link.springer.com/article/10.1007/s00114-022-01810-z |journal=The Science of Nature |volume=109 |issue=5 |pages=Article number 40 |bibcode=2022SciNa.109...40V |doi=10.1007/s00114-022-01810-z |pmid=35939154 |s2cid=251401349|url-access=subscription }}

|P. saxeum

|Gran Barranca Member

|

|

|thumb

Prosotherium

|P. garzoni

|Puesto Almendra Member

|

|

|thumb

Protarchaeohyrax

|P. minor

|Puesto Almendra Member

|

|A archaeohyracid notoungulate

|

Proterotheriidae indet.

|Currently undescribed

|Puesto Almendra Member

|

|

|

Protheosodon

|P. coniferus

|Puesto Almendra Member

|

|

|thumb

Protypotherium{{Cite book |last1=A. G. Kramarz |url=https://www.researchgate.net/publication/233955394 |title=The Paleontology of Gran Barranca. Evolution and Environmental Change Through the Middle Cenozoic of Patagonia |last2=M. G. Vucetich |last3=A. A. Carlini |last4=M. R. Ciancio |last5=M. A. Abello |last6=C. M. Deschamps |last7=J. N. Gelfo |publisher=Cambridge University Press |year=2010 |isbn=978-0-521-87241-6 |editor-last=Richard H. Madden |pages=143–151 |chapter=A new mammal fauna at the top of the Gran Barranca sequence and its biochronological significance. |editor-last2=Alfredo A. Carlini |editor-last3=Maria Guiomar Vucetich |editor-last4=Richard F. Kay}}

|P. sp.

|Colhué Huapí Member

|

|

|thumb

Pseudhyrax

|P. eutrachytheroides

|Puesto Almendra Member

|

|

|

Pternoconius{{Cite journal |last1=Cifelli |first1=Richard L. |last2=Soria |first2=Miguel F. |date=1983 |title=Notes on Deseadan Macraucheniidae |url=https://ameghiniana.org.ar/index.php/ameghiniana/article/view/1799 |language=es |volume=20 |issue=1–2 |pages=141–153 |journal=Ameghiniana|issn=1851-8044}}{{Cite journal |last1=Soria |first1=Miguel Fernando |last2=Hoffstetter |first2=Robert |date=1985 |title=Pternoconius tournoueri, nueva especie de Macraucheniidae (Mammalia; Litopterna) de edad Colhuehuapense (Oligoceno Tardio); Pcia. Del Chubut, República Argentina |url=https://ameghiniana.org.ar/index.php/ameghiniana/article/view/1758 |language=es |volume=22 |issue=3–4 |pages=149–158|journal=Ameghiniana |issn=1851-8044}}{{Cite journal |last1=Cheme-Arriaga |first1=Lucas |last2=Dozo |first2=MarÍa Teresa |last3=Gelfo |first3=Javier N. |date=2016-11-01 |title=A new Cramaucheniinae (Litopterna, Macraucheniidae) from the early Miocene of Patagonia, Argentina |url=https://doi.org/10.1080/02724634.2017.1229672 |journal=Journal of Vertebrate Paleontology |volume=36 |issue=6 |pages=e1229672 |doi=10.1080/02724634.2017.1229672 |bibcode=2016JVPal..36E9672C |s2cid=88586687 |issn=0272-4634|hdl=11336/30386 |hdl-access=free }}

|P. polymorphoides

P. tournoueri

P. bondi

|Colhué Huapí and Puesto Almendra Members

|

|

|

Puelia

|P. sigma

P. coarctatus

|Gran Barranca, Rosado, and Vera Members

|

|A notohippid notoungulate

|thumb

Pyrotherium{{Cite journal |last1=MacPhee |first1=R. D. E. |last2=Pino |first2=Santiago Hernández Del |last3=Kramarz |first3=Alejandro |last4=Forasiepi |first4=Analía M. |last5=Bond |first5=Mariano |last6=Sulser |first6=R. Benjamin |date=2021-04-19 |title=Cranial Morphology and Phylogenetic Relationships of Trigonostylops wortmani, an Eocene South American Native Ungulate |journal=Bulletin of the American Museum of Natural History |volume=449 |issue=1 |pages=1–183 |doi=10.1206/0003-0090.449.1.1 |issn=0003-0090 |doi-access=free}}

|P. romeroi

|Puesto Almendra Member

|

|

|thumb

Rhynchippus{{Cite journal |last=Simpson |first=George Gaylord |title=New or little-known ungulates from the Pyrotherium and Colpodon beds of Patagonia. |url=https://www.biodiversitylibrary.org/bibliography/91310 |journal=American Museum Novitates |issue=576}}{{Cite journal |last1=Martínez |first1=Gastón |last2=Dozo |first2=María Teresa |last3=Gelfo |first3=Javier N. |last4=Marani |first4=Hernán |date=2016-05-27 |title=Cranial Morphology of the Late Oligocene Patagonian Notohippid Rhynchippus equinus Ameghino, 1897 (Mammalia, Notoungulata) with Emphases in Basicranial and Auditory Region |journal=PLOS ONE |language=en |volume=11 |issue=5 |pages=e0156558 |doi=10.1371/journal.pone.0156558 |issn=1932-6203 |pmc=4883762 |pmid=27232883 |bibcode=2016PLoSO..1156558M |doi-access=free}}

|R. pumilus

R. equinus

R. sp.

|Puesto Almendra Member

|

|

|thumb

Rosendo{{Cite journal |last1=Wyss |first1=André R. |last2=Flynn |first2=John J. |last3=Croft |first3=Darin A. |date=2018-06-25 |title=New Paleogene Notohippids and Leontiniids (Toxodontia; Notoungulata; Mammalia) from the Early Oligocene Tinguiririca Fauna of the Andean Main Range, Central Chile |journal=American Museum Novitates |issue=3903 |pages=1–42 |doi=10.1206/3903.1 |issn=0003-0082 |doi-access=free}}

|R. pascuali

|Vera Member

|

|A notohippid notoungulate

|

Rutimeyeria{{Cite journal |last=Ameghino |first=Florentino |date=1901 |title=Notices préliminaires sur des ongulés nouveaux des terrains crétacès de Patagonie |url=http://worldcat.org/oclc/123174974 |journal=Boletin de la Academia Nacional de Ciencias de Córdoba |volume=16 |pages=349–429 |oclc=123174974}}

|R. conulifera

|Gran Barranca Member

|

|A litoptern

|

Santiagorothia

|S. chiliensis

|Vera Member

|

|

|

Scaglia

|S. kraglievichorum

|Gran Barranca Member

|

|

|

Scarrittia

|S. canquelensis

S. barranquensis

|Puesto Almendra Member

|

|

|thumb

Sparnotheriodon

|S. epsilonoides

|Gran Barranca Member

|

|

|

Teratopithecus{{Cite journal |last1=López |first1=Guillermo M. |last2=Gelfo |first2=Javier N. |last3=Bauzá |first3=Nicolás |last4=Bond |first4=Mariano |last5=Tejedor |first5=Marcelo F. |date=2020-02-13 |title=Biochron and Diversity of Archaeopithecidae (Mammalia, Notoungulata) and a New Genus and Species from the Eocene of Patagonia, Argentina |url=https://bioone.org/journals/ameghiniana/volume-57/issue-2/AMGH.18.01.2020.3291/Biochron-and-Diversity-of-Archaeopithecidae-Mammalia-Notoungulata-and-a-New/10.5710/AMGH.18.01.2020.3291.full |journal=Ameghiniana |volume=57 |issue=2 |pages=103–116 |doi=10.5710/AMGH.18.01.2020.3291 |s2cid=214155791 |issn=0002-7014|url-access=subscription }}

|T. elpidophoros

|Gran Barranca Member

|

|

|

Tetragonostylops{{Cite journal |last1=Kramarz |first1=Alejandro G. |last2=Bond |first2=Mariano |last3=Carlini |first3=Alfredo A. |date=2019-08-26 |title=Astrapotheres from Cañadón Vaca, middle Eocene of central Patagonia. New insights on diversity, anatomy and early evolution of Astrapotheria |url=https://palaeo-electronica.org/content/2019/2688-canadon-vaca-astrapotheres |journal=Palaeontologia Electronica |language=English |volume=22 |issue=2 |pages=1–22 |doi=10.26879/986 |issn=1094-8074|doi-access=free|hdl=11336/128520 |hdl-access=free }}

|T. apthomasi

|Gran Barranca Member

|

|

|

Tetramerorhinus

|T. sp.

|Colhué Huapí Member

|

|

|thumb

Teushentherium{{Cite journal |last1=Martínez |first1=Gastón |last2=Dozo |first2=María T. |last3=Gelfo |first3=Javier N. |last4=Ciancio |first4=Martín R. |last5=González-José |first5=Rolando |date=2021-02-11 |title=A new toxodont (Mammalia, Panperissodactyla, Notoungulata) from the Oligocene of Patagonia, Argentina, and systematic considerations on the paraphyletic 'Notohippidae' |url=https://doi.org/10.1080/14772019.2021.1872723 |journal=Journal of Systematic Palaeontology |volume=18 |issue=24 |pages=1995–2013 |doi=10.1080/14772019.2021.1872723 |s2cid=232116246 |issn=1477-2019|url-access=subscription }}

|T. camaronensis

|Puesto Almendra Member

|

|

|

Theosodon{{Cite journal |last=Soria |first=Miguel Fernando |date=1981 |title=Los Litopterna del Colhuehuapense (Oligoceno tardío) de la Argentina. |journal=Revista del Museo Argentino de Ciencias Naturales "Bernardino Rivadavia". Paleontología |issue=3 |pages=1–54}}

|T.? frenguellii

|Colhué Huapí Member

|

|

|thumb

Thomashuxleya

|T. rostrata

|Gran Barranca Member

|

|An isotemnid notoungulate

|

Trachytherus{{Cite journal |last1=Billet |first1=Guillaume |last2=De Muizon |first2=Christian |last3=Mamani Quispe |first3=Bernardino |date=2008-01-22 |title=Late Oligocene mesotheriids (Mammalia, Notoungulata) from Salla and Lacayani (Bolivia): implications for basal mesotheriid phylogeny and distribution |journal=Zoological Journal of the Linnean Society |volume=152 |issue=1 |pages=153–200 |doi=10.1111/j.1096-3642.2007.00388.x |issn=0024-4082 |doi-access=free}}

|T. spegazzinianus

T. sp.

|Puesto Almendra Member

|

|

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Transpithecus

|T. obtentus

T. sp.

|Gran Barranca and Rosado Members

|

|

|

Tricoelodus

|T. bicuspidatus

|Puesto Almendra Member

|

|An adianthid litoptern

|

Trigonolophodon{{Cite journal |last=Roth |first=Santiago |date=1904 |title=Noticias preliminares sobre nuevos mamíferos fósiles del cretáceo superior y terciario inferior de la Patagonia |url=https://publicaciones.fcnym.unlp.edu.ar/rmlp/article/view/1215 |journal=Revista del Museo de La Plata |volume=11 |pages=135–158 |issn=2545-6377}}

|T. elegans

T. inflatus

|Puesto Almendra Member

|

|A homalodotheriid notoungulate

|

Trigonostylops

|T. wortmani

T. sp.

|Gran Barranca Member

|

|An astrapothere

|thumb

Ultrapithecus

|U. rutilans

|Gran Barranca and Rosado Members

|

|

|

Victorlemoinea

|V. labyrinthica

V. emarginata

V. longidens

V. sp.

|Gran Barranca Member

|

|

|

== Xenarthrans ==

class="wikitable" align="center" width="75%"
Name

! Species

! Member/Locality

! Material

! Notes

! Image

Archaeutatus{{Cite book |last1=Carlini |first1=Alfredo Armando |url=https://www.researchgate.net/publication/233955405 |title=The Paleontology of Gran Barranca. Evolution and Environmental Change Through the Middle Cenozoic of Patagonia |last2=Ciancio |first2=Martin R. |last3=Scillato-Yané |first3=G. J. |publisher=Cambridge University Press |year=2010 |isbn=978-0-521-87241-6 |pages=143–151 |chapter=Middle Eocene-early Miocene Dasypodidae (Xenarthra) of Southern South America, successive faunas in Gran Barranca; Biostratigraphy and Palaeoecology}}

|A. malaspinensis

A. sp.

|Upper Puesto Almendra Member

|

|

|

Astegotherium

|A. dichotomum

|Gran Barranca Member

|

|

|

Barrancatatus

|B. rigidus

B. maddeni

B. sp.

|Vera and Upper Puesto Almendra Members

|

|

|

Clypeotherium

|C. magnum

|Upper Puesto Almendra Members

|

|

|

Cochlops

|C. sp.

|Colhué Huapí Member

|

|

|

Glyptodontinae indet.

|Currently undescribed

|Colhué Huapí and Upper Puesto Almendra Members

|

|

|

Hapaloides{{Cite journal |last1=Carlini |first1=Alfredo Armando |last2=Cancio |first2=Martin R. |last3=Scillato-Yané |first3=Gustavo J. |date=2005 |title=Los Xenarthra de Gran Barranca: Más de 20 Ma de historia. |url=https://www.researchgate.net/publication/259345614 |journal=Actas del XVI Congreso Geológico Argentino. La Plata 2005}}

| H. ignavus

H. laeviusculus

H. ponderosus

H. sp.

|Colhué Huapí Member

|

|

|

Holomegalonyx

|H. menendezi

|Colhué Huapí Member

|

|

|

Machlydotherium

|M. ater

M. sparsum

M. sp.

|Gran Barranca, Rosado, Upper Puesto Almendra, and Vera Members

|

|

|thumb

Mazzoniphractus

|M. ingens

|Rosado Member

|

|

|

Megalonychidae indet.

|Currently undescribed

|Colhué Huapí Member

|

|

|

Meteutatus

|M. anthinus

M. ascendens

M. concavus

M. confluens

M. lagenaformis

M. lucidus

M. minutus

M. nepotulus

M. percarinatus

M. tortuosus

M. sp.

|Gran Barranca, Rosado, Upper Puesto Almendra, and Vera Members

|

|

|

Nematherium

|N. sp.

|Colhué Huapí Member

|

|

|thumb

Octodontotherium

|O. grande

O. crassidens

|Upper Puesto Almendra Member

|

|

|thumb

Palaeopeltis

|P. inornatus

|Upper Puesto Almendra Member

|

|

|

Parutaetus{{Cite journal |last1=Carlini |first1=Alfredo A. |last2=Ciancio |first2=Martín Ricardo |last3=Flynn |first3=John J. |last4=Scillato-Yané |first4=Gustavo J. |last5=Wyss |first5=André R. |date=2009-12-01 |title=The phylogenetic and biostratigraphic significance of new armadillos (Mammalia, Xenarthra, Dasypodidae, Euphractinae) from the Tinguirirican (early oligocene) of Chile |url=https://doi.org/10.1017/S1477201908002708 |journal=Journal of Systematic Palaeontology |volume=7 |issue=4 |pages=489–503 |doi=10.1017/S1477201908002708 |bibcode=2009JSPal...7..489C |s2cid=85865716 |issn=1477-2019|url-access=subscription }}

|P. chicoensis

P. chilensis

P. clusus

P. signatus

|Gran Barranca, Rosado, Upper Puesto Almendra, and Vera Members

|

|

|

Peltephilus

|P. pumilus

P. undulatus

P. sp.

| Colhué Huapí and Upper Puesto Almendra Members

|

|

|thumb

Peltephilidae indet.

|Currently undescribed

|Colhué Huapí, Rosado, Upper Puesto Almendra, and Vera Members

|

|

|

Proeuphractus

|P. setiger

|Upper Puesto Almendra Member

|

|

|

Proeutatus

|P. oenophorum

Proeutatus robustus

P. sp.

|Colhué Huapí Member

|

|

|thumb

Propalaehoplophorus

|P sp.

|Colhué Huapí Member

|

|

|thumb

Proplatyarthrus

|P longipes

|Vera Member

|

|

|

Proschismotherium

|P. oppositum

P. sp.

|Colhué Huapí Member

|

|

|thumb

Prostegotherium

|P. astrifer

P. notostylopianum

P. sp.

|Gran Barranca Member

|

|

|

Prozaedyus

|P. humilis

P. impressus

P. planus

P. sp.

|Colhué Huapí and Upper Puesto Almendra Members

|

|

|thumb

Pseudoglyptodon{{Cite journal |last1=Mckenna |first1=Malcolm C. |last2=Wyss |first2=André R. |last3=Flynn |first3=John J. |date=2006 |title=Paleogene pseudoglyptodont xenarthrans from central Chile and Argentine Patagonia |url=https://www.biodiversitylibrary.org/bibliography/169128 |journal=American Museum Novitates |issue=3536 |pages=1–18|doi=10.1206/0003-0082(2006)3536[1:PPXFCC]2.0.CO;2 |s2cid=85863803 }}

|P. chilensis

|Gran Barranca and Upper Puesto Almendra Members

|

|

|

Stegosimpsonia

|S. chubutanum

|Colhué Huapí, Gran Barranca, and Rosado Members

|

|

|

Stegotherium{{Cite journal |last1=Fernicola |first1=Juan Carlos |last2=Vizcaíno |first2=Sergio |date=2008 |title=Revisión del género Stegotherium Ameghino, 1887 (Mammalia, Xenarthra, Dasypodidae) |journal=Ameghiniana |url=https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/143 |language=es |volume=45 |issue=2 |issn=1851-8044}}

|S. caroloameghinoi

S. pascuali

S. tessellatum

S. variegatum

|Colhué Huapí Member

|

|

|thumb

Stegotheriini indet.

|Currently undescribed

|Colhué Huapí, Rosado, Upper Puesto Almendra, and Vera Members

|

|

|

Stenotatus

| S. centralis

S. patagonicus

S. ornatus

S sp.

|Colhué Huapí, Upper Puesto Almendra, and Vera Members

|

|

|thumb

Utaetus

|U. buccatus

U. deustus

U. laevus

U. lenis

|Gran Barranca and Rosado Members

|

|

|

== Metatherians ==

class="wikitable" align="center" width="75%"
Name

! Species

! Member/Locality

! Material

! Notes

! Image

Abderites

|A. meridionalis

|Colhué Huapí Member

|

|

|

Abderitidae indet.

|Currently undescribed

|Colhué Huapí Member

|

|

|

Acdestodon

|A. bonapartei

|Upper Puesto Almendra Member

|

|

|

Acdestoides

|A. praecursor

|Upper Puesto Almendra Member

|

|

|

Acrocyon

|A. riggsi

|Colhué Huapí Member

|

|

|

Acyon{{Cite journal |last1=Marshall |first1=Larry G. |last2=History |first2=Field Museum of Natural |date=1981 |title=Review of the Hathlyacyninae, an extinct subfamily of South American "dog-like" marsupials |url=https://www.biodiversitylibrary.org/bibliography/3520 |journal=Fieldiana |volume=7 |pages=1–120}}

|A. tricuspidatus

|Colhué Huapí Member

|

|

|

Amphidolops

|A. serrula

|Gran Barranca Member

|

|

|

Anargyrolagus{{Cite journal |last1=Carlini |first1=Alfredo A. |last2=Pascual |first2=Rosendo |last3=Goin |first3=Francisco J. |date=2007-10-16 |title=A new argyrolagid marsupial from the Early Miocene of Patagonia (Argentina) |url=https://www.researchgate.net/publication/233714181|journal=Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen |language=en |volume=245 |issue=3 |pages=323–330 |doi=10.1127/0077-7749/2007/0245-0323 |issn=0077-7749}}

|A. primus

|Trelew Member

|

|

|

Angelocabrerus{{Cite journal |last=Simpson |first=George Gaylord |date=1970 |title=Mammals from the early Cenozoic of Chubut, Argentina |url=https://www.biodiversitylibrary.org/part/6267 |journal=Breviora |volume=360 |pages=1–13 |issn=0006-9698}}

|A. daptes

|Gran Barranca Member

|

|

|

Arctodictis

|A. sinclairi

|Colhué Huapí Member

|

|

|

Arminiheringia

|A auceta

|Gran Barranca Member

|

|

|

Australohyaena{{Cite journal |last1=Forasiepi |first1=Analía M. |last2=Judith Babot |first2=M. |last3=Zimicz |first3=Natalia |date=2015-06-03 |title=Australohyaena antiqua (Mammalia, Metatheria, Sparassodonta), a large predator from the Late Oligocene of Patagonia |url=https://doi.org/10.1080/14772019.2014.926403 |journal=Journal of Systematic Palaeontology |volume=13 |issue=6 |pages=503–525 |doi=10.1080/14772019.2014.926403 |bibcode=2015JSPal..13..503F |s2cid=83669335 |issn=1477-2019|hdl=11336/59430 |hdl-access=free }}

|A. antiqua

|Upper Puesto Almendra Member

|

|

|

Borhyaena

|B. macrodonta

|Colhué Huapí Member

|

|

|thumb

Caenolestoides{{Cite journal |last1=Abello |first1=María Alejandra |last2=Martin |first2=Gabriel M |last3=Cardoso |first3=Yamila |date=2021-01-12 |title=Review of the extinct 'shrew-opossums' (Marsupialia: Caenolestidae), with descriptions of two new genera and three new species from the Early Miocene of southern South America |journal=Zoological Journal of the Linnean Society |volume=193 |issue=2 |pages=464–498 |doi=10.1093/zoolinnean/zlaa165 |issn=0024-4082|doi-access=free}}

|C. miocaenicus

|Colhué Huapí Member

|

|

|

Canchadelphys

|C. cristata

|Vera Member

|

|

|

Carlothentes

|C. chubutensis

|Upper Puesto Almendra Member

|

|

|

Caroloameghinia

|C. mater

C. tenuis

|Gran Barranca Member

|

|

|

Cladosictis

|C. centralis

C sp.

|Colhué Huapí Member

|

|

|thumb

Clenia

|C. minuscula

C. brevis

|Colhué Huapí and Vera Members

|

|

|

Coona{{Cite journal |last=Simpson |first=George Gaylord |date=1938 |title=A new marsupial from the Eocene of Patagonia |url=https://digitallibrary.amnh.org/handle/2246/2204 |journal=American Museum Novitates |language=en-US |issue=989 |pages=1–5|hdl=2246/2204 }}

|C. gaudryi

C. gutierrezi

C. pattersoni

|Gran Barranca Member

|

|

|

Didelphimorphia indet.

|Currently undescribed

|Colhué Huapí Member

|

|

|

Eomicrobiotherium

|E. matutinum

E. mykerum

|Colhué Huapí, Trelew, Upper Puesto Almendra, and Vera Members

|

|

|

Epikhlonia

|E. verticalis

|Vera Member

|

|

|

Eudolops{{Cite journal |last=Marshall |first=Larry G. |date=1982 |title=Systematics of the extinct South American marsupial family Polydolopidae |url=https://www.biodiversitylibrary.org/bibliography/3350 |journal=Fieldiana |volume=12 |pages=1–109 |doi=10.5962/bhl.title.3350|doi-access=free }}

|E. tetragonus

|Gran Barranca Member

|

|

|

Evolestes

|E. sp.

|Upper Puesto Almendra Member

|

|

|

Gaimanlestes

|G. pascuali

|Trelew Member

|

|

|

Hathliacynidae indet.

|Currently undescribed

|Colhué Huapí and Vera Members

|

|

|

Hondonadia{{Cite book |last1=Goin |first1=Francisco J.|last2=Abello|first2=María Alejandra|last3=Chornogubsky|first3=Laura|title=The Paleontology of Gran Barranca: Evolution and Environmental Change Through the Middle Cenozoic of Patagonia|date=2010-01-01|publisher=Cambridge University Press |url=https://www.academia.edu/3574942|isbn=978-0-521-87241-6 |language=en |chapter=Middle Tertiary marsupials from central Patagonia (early Oligocene of Gran Barranca): understanding South America’s Grande Coupure|pages=69–105}}

|H. fierroensis

H. parca

H. praecipitia

H. pumila

|Upper Puesto Almendra and Vera Members

|

|

|

Kramadolops

|K. fissuratus

K. hernandezi

K. maximus

K. mayoi

|Gran Barranca, Upper Puesto Almendra, and Vera Members

|

|

|

Microbiotherium

|M. praecursor

M. sp.

|Colhué Huapí and Vera Members

|

|

|

Microbiotheriidae indet.

|Currently undescribed

|Colhué Huapí Member

|

|

|

Nemolestes

|N. spalacotherinus

|Gran Barranca Member

|

|

|

Notogale

|N. mitis

|Upper Puesto Almendra Member

|

|

|

Oligobiotherium

|O. divisum

|Colhué Huapí Member

|

|

|

Patagonia

|P. peregrina

|Trelew Member

|

|A metatherian of uncertain placement

|

Pachybiotherium

|P. acclinum

|Colhué Huapí Member

|

|

|

Palaeothentes{{Cite journal |last1=Bown |first1=Thomas M. |last2=Fleagle |first2=John G. |date=1993 |title=Systematics, Biostratigraphy, and Dental Evolution of the Palaeothentidae, Later Oligocene to Early–Middle Miocene (Deseadan–Santacrucian) Caenolestoid Marsupials of South America |url=https://www.cambridge.org/core/journals/journal-of-paleontology/article/abs/systematics-biostratigraphy-and-dental-evolution-of-the-palaeothentidae-later-oligocene-to-earlymiddle-miocene-deseadansantacrucian-caenolestoid-marsupials-of-south-america/D9E10E776C74F28431ABA0E899FEF2C0 |journal=Journal of Paleontology |language=en |volume=67 |issue=S29 |pages=1–76 |doi=10.1017/S0022336000062107 |bibcode=1993JPal...67S...1B |s2cid=128233878 |issn=0022-3360|url-access=subscription }}

|P. marshalli

P. migueli

P. minutus

|Colhué Huapí and Upper Puesto Almendra Members

|

|

|thumb

Palaeothentidae indet.

|Currently undescribed

|Colhué Huapí and Upper Puesto Almendra Members

|

|

|

Parabderites

|P. bicrispatus

P. minisculus

|Colhué Huapí and Upper Puesto Almendra Members

|

|

|

Periakros

|P. ambiguus

|Vera Member

|

|

|

Pharsophorus

|P. lacerans

P. tenax

|Upper Puesto Almendra Member

|

|

|

Pichiplidae indet.

|Currently undescribed

|Upper Puesto Almendra and Vera Members

|

|

|

Pilchenia

|P. antiqua

P. intermedia

P. lobata

P. lucina

|Upper Puesto Almendra and Vera Members

|

|

|

Polydolops

|P. crassus

P. serra

P. tetragonus

P. thomasi

P. unicus

|Gran Barranca Member

|

|

|

Praedens

|P. aberrans

|Vera Member

|

|

|

Proargyrolagus

|P. argentinus

|Colhué Huapí Member

|

|

|

Proborhyaena{{Cite journal |last1=Patterson |first1=Bryan |last2=Marshall |first2=Larry G. |date=1978 |title=The Deseadan, early Oligocene, Marsupialia of South America |url=https://www.biodiversitylibrary.org/bibliography/3439 |journal=Fieldiana|volume=42|issue=2|pages=1–100}}

|P. gigantea

|Upper Puesto Almendra Member

|

|

|thumb

Procladosictis

|P. erecta

|Gran Barranca Member

|

|

|

Progarzonia

|P. notostylopense

|Gran Barranca Member

|

|

|

Pseudothylacynus

|P. rectus

|Colhué Huapí Member

|

|

|

Rosendolops{{Cite journal |last1=Goin |first1=Francisco J. |last2=Candela |first2=Adriana M. |date=1996-06-05 |title=A new early Eocene polydolopimorphian (Mammalia, Marsupialia) from Patagonia |url=https://www.researchgate.net/publication/233173694 |journal=Journal of Vertebrate Paleontology |volume=16 |issue=2 |pages=292–296 |doi=10.1080/02724634.1996.10011316 |bibcode=1996JVPal..16..292G |issn=0272-4634}}

|R. ebaios

R. primigenium

|Gran Barranca, Upper Puesto Almendra, and Vera Members

|

|

|

Rosendolopidae indet.

|Currently undescribed

|Upper Puesto Almendra and Vera Members

|

|

|

Sipalocyon

|S. externus

S. sp.

|Colhué Huapí Member

|

|

|

Stilotherium

|S. parvum

|Colhué Huapí Member

|

|

|

Thylacosmilidae indet.

|Currently undescribed

|Colhué Huapí Member

|

|

|

Trelewthentes

|T. rothi

|Upper Puesto Almendra Member

|

|

|

== Rodents ==

class="wikitable" align="center" width="75%"
Name

! Species

! Member/Locality

! Material

! Notes

! Image

Acarechimys{{Cite journal |last1=Vucetich |first1=M.G. |last2=Dozo |first2=M.T. |last3=Arnal |first3=M. |last4=Pérez |first4=M.E. |date=2015-02-17 |title=New rodents (Mammalia) from the late Oligocene of Cabeza Blanca (Chubut) and the first rodent radiation in Patagonia |url=https://doi.org/10.1080/08912963.2014.883506 |journal=Historical Biology |volume=27 |issue=2 |pages=236–257 |doi=10.1080/08912963.2014.883506 |bibcode=2015HBio...27..236V |s2cid=84157246 |issn=0891-2963|hdl=11336/17958 |hdl-access=free }}{{Cite book |last1=Madden |first1=Richard H. |chapter-url=https://books.google.com/books?id=oY7wkK6lV4cC&q=Colhuehuapian+rodents+from+Gran+Barranca+and+other+Patagonian+localities%3A+the+state+of+the+art.&pg=PA206 |title=The Paleontology of Gran Barranca: Evolution and Environmental Change Through the Middle Cenozoic of Patagonia |last2=Carlini |first2=Alfredo A. |last3=Vucetich |first3=Maria Guiomar |last4=Kay |first4=Richard F. |date=2010-06-17 |publisher=Cambridge University Press |isbn=978-0-521-87241-6 |language=en |chapter=Colhuehuapian rodents from Gran Barranca and other Patagonian localities: the state of the art.}}

|A. leucotheae

A. minutissimus

A sp.

|Colhué Huapí, Puesto Almendra, and Trelew Members

|

|

|

Acaremys{{Cite journal |last1=Arnal |first1=M. |last2=Vucetich |first2=M.G. |date=2015-01-02 |title=Revision of the fossil rodent Acaremys Ameghino, 1887 (Hystricognathi, Octodontoidea, Acaremyidae) from the Miocene of Patagonia (Argentina) and the description of a new acaremyid |journal=Historical Biology |volume=27 |issue=1 |pages=42–59 |doi=10.1080/08912963.2013.863881 |issn=0891-2963 |doi-access=free|bibcode=2015HBio...27...42A |hdl=11336/13646 |hdl-access=free }}{{Cite journal |last1=Vucetich |first1=María Guiomar |last2=Kramarz |first2=Alejandro G. |date=2003-06-17 |title=New Miocene rodents from Patagonia (Argentina) and their bearing on the early radiation of the octodontoids (Hystricognathi) |url=https://doi.org/10.1671/0272-4634(2003)023[0435:NMRFPA]2.0.CO;2 |journal=Journal of Vertebrate Paleontology |volume=23 |issue=2 |pages=435–444 |doi=10.1671/0272-4634(2003)023[0435:NMRFPA]2.0.CO;2 |s2cid=85705842 |issn=0272-4634|url-access=subscription }}

|A. preminutus

A. murinus

A. sp.

|Colhué Huapí and Trelew Members

|

|

|

Asteromys

|A. punctus

A. sp.

|Upper Puesto Almendra Member

|

|

|

Australoprocta{{Cite journal |last=Kramarz |first=Alejandro G. |date=1998 |title=Un nuevo Dasyproctidae (Rodentia, Caviomorpha) del Mioceno inferior De Patagonia |journal=Ameghiniana |url=https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/2431 |language=en |volume=35 |issue=2 |pages=181–192 |issn=1851-8044}}

|A. fleaglei

|Trelew Member

|

|

|

Banderomys{{Cite journal |last1=Busker |first1=Felipe |last2=Pérez |first2=María Encarnación |last3=Krause |first3=Javier Marcelo |last4=Vucetich |first4=María Guiomar |date=2017-11-27 |title=First record of Banderomys leanzai Kramarz, 2005 (Rodentia, Caviomorpha) in Chubut Province, Patagonia (Argentina) |url=http://revista.macn.gob.ar/ojs/index.php/RevMus/article/view/533 |journal=Revista del Museo Argentino de Ciencias Naturales |series=Nueva Serie |language=en |volume=19 |issue=2 |pages=121–129 |issn=1853-0400}}

|B. leanzai

|Colhué Huapí Member

|

|

|

Branisamyopsis{{Cite journal |last=Candela |first=Adriana Magdalena |date=2003 |title=A new porcupine (Rodentia, Hystricognathi, Erethizontidae) from the Early and Middle Miocene of Patagonia |journal=Ameghiniana |url=https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/975 |language=es |volume=40 |issue=3 |pages=483–494 |issn=1851-8044}}

|B. australis

|Colhué Huapí Member

|

|

|

Caviocricetus{{Cite journal |last1=Vucetich |first1=M. G. |last2=Verzi |first2=D. H. |date=1996-06-05 |title=A peculiar octodontoid (Rodentia, Caviomorpha) with terraced molars from the Lower Miocene of Patagonia (Argentina) |url=https://doi.org/10.1080/02724634.1996.10011317 |journal=Journal of Vertebrate Paleontology |volume=16 |issue=2 |pages=297–302 |doi=10.1080/02724634.1996.10011317 |bibcode=1996JVPal..16..297V |issn=0272-4634|url-access=subscription }}

|C. lucasi

|Colhué Huapí and Trelew Members

|

|

|

Caviomorpha indet.

|Currently undescribed

|Upper Puesto Almendra Member

|

|

|

Cephalomyidae indet.

|Currently undescribed

|Upper Puesto Almendra Member

|

|

|

Cephalomyopsis{{Cite journal |last=Busker |first=Felipe |date=2022-12-07 |title=New insight of the genus Cephalomyopsis (Caviomorpha, Cephalomyidae): Systematic revision and paleobiogeographical implications |url=https://www.sciencedirect.com/science/article/pii/S089598112200431X |journal=Journal of South American Earth Sciences |volume=121 |language=en |pages=104145 |doi=10.1016/j.jsames.2022.104145 |issn=0895-9811|url-access=subscription }}

|C. hipselodontus

|Puesto Almendra and Trelew Members

|

|

|

Cephalomys{{Cite journal |last1=Busker |first1=Felipe |last2=Dozo |first2=María Teresa |last3=Soto |first3=Ignacio María |date=2020-10-01 |title=New remains of Cephalomys arcidens (Rodentia, Caviomorpha) and a redefinition of the enigmatic Cephalomyidae |url=https://www.researchgate.net/publication/343807210 |journal=Journal of Systematic Palaeontology |volume=18 |issue=19 |pages=1589–1629 |doi=10.1080/14772019.2020.1796833 |bibcode=2020JSPal..18.1589B |s2cid=225308634 |issn=1477-2019}}{{Cite journal |last=Vucetich |first=María Guiomar |date=1989 |title=Rodents (Mammalia) of the Lacayani fauna revisited (Deseadan, Bolivia). Comparison with new Chinchillidae and Cephalomyidae from Argentina. |url=https://www.researchgate.net/publication/292546558 |journal=Bulletin du Muséum national d'histoire naturelle |volume=11 |issue=4 |pages=233–247}}

|C. arcidens

|Upper Puesto Almendra Member

|

|

|thumb

Changquin{{Cite journal |last1=Vucetich |first1=María G. |last2=Pérez |first2=María E. |last3=Ciancio |first3=Martín R. |last4=Carlini |first4=Alfredo A. |last5=Madden |first5=Richard H. |last6=Kohn |first6=Matthew J. |date=2014-04-16 |title=A new acaremyid rodent (Caviomorpha, Octodontoidea) from Scarritt Pocket, Deseadan (late Oligocene) of Patagonia (Argentina) |journal=Journal of Vertebrate Paleontology |volume=34 |issue=3 |pages=689–698 |doi=10.1080/02724634.2013.804414 |issn=0272-4634 |doi-access=free|bibcode=2014JVPal..34..689V |hdl=11336/17973 |hdl-access=free }}

|C. woodi

|Upper Puesto Almendra Member

|

|

|

Chinchilloidea indet.

|Currently undescribed

|Colhué Huapí Member

|

|

|

Chubutomys{{Cite journal |last1=Wood |first1=Albert Elmer |last2=Patterson |first2=B. |date=1959 |title=The rodents of the Deseadan Oligocene of Patagonia and the beginnings of South American rodent evolution, by Albert E. Wood and Bryan Patterson |url=https://www.biodiversitylibrary.org/part/30346 |journal=Bulletin of the Museum of Comparative Zoology at Harvard College |volume=120 |pages=279–428 |issn=0027-4100}}{{Cite journal |last1=Pérez |first1=María E. |last2=Vucetich |first2=María G. |last3=Kramarz |first3=Alejandro G. |date=2010-03-24 |title=The first Eocardiidae (Rodentia) in the Colhuehuapian (early Miocene) of Bryn Gwyn (northern Chubut, Argentina) and the early evolution of the peculiar cavioid rodents |url=https://doi.org/10.1080/02724631003618223 |journal=Journal of Vertebrate Paleontology |volume=30 |issue=2 |pages=528–534 |doi=10.1080/02724631003618223 |bibcode=2010JVPal..30..528P |s2cid=128488373 |issn=0272-4634|url-access=subscription }}

|C. simpsoni

C. leucoreios

|Trelew and Upper Puesto Almendra Member

|

|

|

Deseadomys

|D. arambourgi

|Puesto Almendra Member

|

|

|

Dudumus{{Cite journal |last1=Arnal |first1=Michelle |last2=Kramarz |first2=Alejandro G. |last3=Vucetich |first3=M. Guiomar |last4=Vieytes |first4=E. Carolina |date=2014-03-01 |title=A new early Miocene octodontoid rodent (Hystricognathi, Caviomorpha) from Patagonia (Argentina) and a reassessment of the early evolution of Octodontoidea |url=https://doi.org/10.1080/02724634.2013.808203 |journal=Journal of Vertebrate Paleontology |volume=34 |issue=2 |pages=397–406 |doi=10.1080/02724634.2013.808203 |bibcode=2014JVPal..34..397A |s2cid=83652841 |issn=0272-4634|hdl=11336/29748 |hdl-access=free }}

|D. ruigomezi

|Trelew Member

|

|

|

Draconomys

|D. verai

|Puesto Almendra Member

|

|

|

Eobranisamys

|E sp.

|Puesto Almendra Member

|

|

|

Eocardiidae indet.

|Currently undescribed

|Puesto Almendra Member

|

|

|

Eosteiromys

|E. homogenidens

E. segregatus

E. sp.

|Colhué Huapí and Trelew Members

|

|

|

Eoviscaccia{{Cite journal |last=Kramarz |first=Alejandro Gustavo |date=2001 |title=Registro de Eoviscaccia (Rodentia, Chinchillidae) en estratos colhuehuapenses de Patagonia, Argentina |journal=Ameghiniana |url=https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/2608 |language=es |volume=38 |issue=3 |pages=237–242 |issn=1851-8044}}

|E. australis

|Colhué Huapí, Puesto Almendra, and Trelew Members

|

|

|

Ethelomys

|E. loomisi

|Upper Puesto Almendra Member

|

|

|

Hypsosteiromys{{Cite journal |last1=Dozo |first1=María T. |last2=Vucetich |first2=María G. |last3=Candela |first3=Adriana M. |date=2004-03-25 |title=Skull anatomy and neuromorphology of Hypsosteiromys, a Colhuehuapian erethizontid rodent from Argentina |url=https://doi.org/10.1671/18.1 |journal=Journal of Vertebrate Paleontology |volume=24 |issue=1 |pages=228–234 |doi=10.1671/18.1 |bibcode=2004JVPal..24..228D |s2cid=86327308 |issn=0272-4634|hdl=11336/103980 |hdl-access=free }}

|H. nectus

H. axiculus

|Colhué Huapí Member

|

|

|

Incamys{{Cite journal |last1=Busker |first1=Felipe |last2=Dozo |first2=María Teresa |date=2017-05-28 |title=First Confirmed Record of Incamys Bolivianus (Caviomorpha, Chinchilloidea) in the Deseadan of Patagonia (Argentina) |url=https://www.researchgate.net/publication/317200483 |journal=Ameghiniana |volume=54 |issue=6 |pages=706–712 |doi=10.5710/AMGH.24.05.2017.3098 |hdl=11336/40063 |s2cid=134316209 |issn=0002-7014|hdl-access=free }}{{Cite journal |last1=Patterson |first1=B. |last2=Wood |first2=Albert Elmer |date=1982 |title=Rodents from the Deseadan Oligocene of Bolivia and the relationships of the caviomorpha |url=https://www.biodiversitylibrary.org/part/33810 |journal=Bulletin of the Museum of Comparative Zoology |volume=149 |pages=371–543 |issn=0027-4100}}

|I. bolivianus

I. menniorum

|Puesto Almendra Member

|

|

|

Leucokephalos

|L. zeffiae

|Upper Puesto Almendra Member

|

|

|

Litodontomys

|L chubtensis

|Upper Puesto Almendra Member

|

|

|

Llitun

|L. notuca

|Upper Puesto Almendra Member

|

|

|

Loncolicu

|L. tretos

|Upper Puesto Almendra Member

|

|

|

Luantus

|L. initialis

L. minor

L. propheticus

L. sp.

|Colhué Huapí and Trelew Members

|

|

|

Neoepiblemidae indet.

|Currently undescribed

|Colhué Huapí Member

|

|

|

Neoreomys

|N. pinturensis

|Colhué Huapí Member

|

|

|thumb

Paradelphomys{{Cite journal |last1=Patterson |first1=B. |last2=Pascual |first2=R. |date=1968 |title=New echimyid rodents from the Oligocene of Patagonia, and a synopsis of the family |url=https://www.biodiversitylibrary.org/part/31522 |journal=Breviora |volume=301 |pages=1–14 |issn=0006-9698}}

|P. fissus

|Colhué Huapí Member

|

|

|

Parasteiromys

|P. friantae

P. uniformis

|Colhué Huapí Member

|

|

|

Perimys

| P. incavatus

P. transversus

P. dissimilis

P. sp.

|Colhué Huapí and Trelew Members

|

|

|thumb

Platypittamys{{Cite journal |last=Wood |first=Albert Elmer |date=1949 |title=A new Oligocene rodent genus from Patagonia. |url=https://www.biodiversitylibrary.org/bibliography/90652 |journal=American Museum Novitates |issue=1435 |pages=1–54}}

|P. brachyodon

|Upper Puesto Almendra Member

|

|

|

Prospaniomys{{Cite journal |last1=Arnal |first1=Michelle |last2=Kramarz |first2=Alejandro G. |date=2011-09-01 |title=First complete skull of an octodontoid (Rodentia, Caviomorpha) from the Early Miocene of South America and its bearing in the early evolution of Octodontoidea |url=https://www.sciencedirect.com/science/article/pii/S0016699511000532 |journal=Geobios |language=en |volume=44 |issue=5 |pages=435–444 |doi=10.1016/j.geobios.2010.12.003 |bibcode=2011Geobi..44..435A |issn=0016-6995|hdl=11336/69014 |hdl-access=free }}{{Cite journal |last1=Álvarez |first1=Alicia |last2=Arnal |first2=Michelle |date=2015-12-01 |title=First Approach to the Paleobiology of Extinct Prospaniomys (Rodentia, Hystricognathi, Octodontoidea) Through Head Muscle Reconstruction and the Study of Craniomandibular Shape Variation |url=https://doi.org/10.1007/s10914-015-9291-z |journal=Journal of Mammalian Evolution |language=en |volume=22 |issue=4 |pages=519–533 |doi=10.1007/s10914-015-9291-z |s2cid=16937577 |issn=1573-7055|hdl=11336/19056 |hdl-access=free }}

|P. priscus

P. sp.

|Colhué Huapí and Trelew Members

|

|

|

Prostichomys

|P. bowni

|Colhué Huapí Member

|

|

|

Protacaremys

|P. adilos

P. avunculus

P. prior

P. pulchellus

P. sp.

|Colhué Huapí and Upper Puesto Almendra Members

|

|

|

Protadelphomys

|P. latus

P. sp.

|Colhué Huapí and Trelew Members

|

|

|

Saremmys{{Cite journal |last1=Busker |first1=Felipe |last2=Pérez |first2=María E. |last3=Dozo |first3=María T. |date=2019-07-01 |title=A new chinchilloid (Rodentia, Hystricognathi) from the early Miocene of the localities of Bryn Gwyn and Gran Barranca (Patagonia, Argentina) |journal=Comptes Rendus Palevol |language=en |volume=18 |issue=5 |pages=525–540 |doi=10.1016/j.crpv.2019.05.003 |s2cid=202185808 |issn=1631-0683|doi-access=free |bibcode=2019CRPal..18..525B }}

|S. ligcura

|Colhué Huapí and Trelew Member

|

|

|

Scotamys

|S. antiquus

|Upper Puesto Almendra Member

|

|

|

Soriamys

|S. gaimanensis

S. ganganensis

S. sp.

|Colhué Huapí and Trelew Members

|

|

|

Willidewu{{Cite journal |last1=Vucetich |first1=María Guiomar |last2=Verzi |first2=Diego H. |date=1991 |title=Un nuevo Echimyidae (Rodentia, Hystricognathi) de la edad Colhuehuapiense de Patagonia y consideraciones sobre la sistematica de la familia. |journal=Ameghiniana |url=https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/2028 |language=es |volume=28 |issue=1–2 |pages=67–74 |issn=1851-8044}}

|W. estaparius

|Trelew Member

|

|

|

Vallehermosomys

|V mazzonii

|Upper Puesto Almendra Member

|

|

|

Xylechimys

|X. obliquus

|Upper Puesto Almendra Member

|

|

|

== Primates ==

class="wikitable" align="center" width="75%"
Name

! Species

! Member/Locality

! Material

! Notes

! Image

Dolichocebus{{Cite journal |last1=Kay |first1=Richard F. |last2=Fleagle |first2=J. G. |last3=Mitchell |first3=T. R. T. |last4=Colbert |first4=Matthew |last5=Bown |first5=Tom |last6=Powers |first6=Dennis W. |date=2008-03-01 |title=The anatomy of Dolichocebus gaimanensis, a stem platyrrhine monkey from Argentina |url=https://www.sciencedirect.com/science/article/pii/S004724840700187X |journal=Journal of Human Evolution |language=en |volume=54 |issue=3 |pages=323–382 |doi=10.1016/j.jhevol.2007.09.002 |pmid=18001820 |bibcode=2008JHumE..54..323K |issn=0047-2484|url-access=subscription }}

|D. gaimanensis

|Trelew Member

|

|

|thumb

Homunculus

|H. sp.

|Colhué Huapí Member

|

|

|thumb

Mazzonicebus{{Cite journal |last=Hershkovitz |first=Philip |date=1981-01-31 |title=Comparative Anatomy of Platyrrhine Mandibular Cheek Teeth dpm4, pm4, m1 with Particular Reference to Those of Homunculus (Cebidae), and Comments on Platyrrhine Origins |url=https://brill.com/view/journals/ijfp/35/2-3/article-p179_5.xml |journal=Folia Primatologica |volume=35 |issue=2–3 |pages=179–217 |doi=10.1159/000155972 |pmid=7021372 |issn=0015-5713|url-access=subscription }}{{Cite journal |last1=Novo |first1=Nelson M. |last2=Tejedor |first2=Marcelo F. |last3=Ruiz |first3=Laureano R. González |date=2018-11-08 |title=Previously unknown fossil platyrrhines (Primates) of Patagonia from the Tournouër collection at the Muséum national d'Histoire naturelle, Paris |journal=Geodiversitas |volume=40 |issue=4 |pages=529–535 |doi=10.5252/geodiversitas2018v40a22 |issn=1280-9659 |doi-access=free|hdl=11336/82708 |hdl-access=free }}

|M. almendrae

|Colhué Huapí Member

|

|

|

Tremacebus{{Cite journal |last=Hershkovitz |first=Philip |date=1974 |title=A New Genus of Late Oligocene Monkey (Cebidae, Platyrrhini) with Notes on Postorbital Closure and Platyrrhine Evolution |url=https://www.karger.com/Article/FullText/155594 |journal=Folia Primatologica |language=english |volume=21 |issue=1 |pages=1–35 |doi=10.1159/000155594 |issn=0015-5713 |pmid=4210697|url-access=subscription }}

|T. harringtoni

|Colhué Huapí Member

|

|

|thumb

== Bats ==

class="wikitable" align="center" width="75%"
Name

! Species

! Member/Locality

! Material

! Notes

! Image

Mormopterus

|M. barrancae

M. sp.

|Colhué Huapí Member

|

|

|

Phyllostominae indet.

|Currently undescribed

|Colhué Huapí Member

|

|

|

References

{{Reflist}}

{{SALMA}}

Category:Geologic formations of Argentina

Category:Miocene Series of South America

Category:Oligocene Series of South America

Category:Eocene Series of South America

Category:Paleogene Argentina

Category:Neogene Argentina

Category:Casamayoran

Category:Divisaderan

Category:Tinguirirican

Category:Deseadan

Category:Colhuehuapian

Category:Fossiliferous stratigraphic units of South America

Category:Paleontology in Argentina

Category:Sandstone formations

Category:Mudstone formations

Category:Lacustrine deposits

Category:Geology of Chubut Province

Category:Golfo San Jorge Basin

Category:Tuff formations of Argentina