Botucatu Formation

{{Infobox rockunit

| name = Botucatu Formation

| image =

| caption =

| type = Geological formation

| age = Aptian

| period = Aptian

| prilithology = Sandstone

| otherlithology =

| namedfor = Botucatu

| namedby =

| region = Rio Grande do Sul

| country = {{BRA}}
{{URU}}

| coordinates = {{coord|29.7|S|52.4|W|display=inline, title}}

| paleocoordinates = {{coord|30.6|S|19.5|W|display=inline}}

| unitof = São Bento Group

| subunits =

| underlies = Serra Geral Formation

| overlies = Rio do Rasto Formation

| thickness =

| extent = Paraná & Pelotas Basins

| area =

| map = Mapa Geologia Bacia do Paraná simples.png

| map_caption = Geologic map of the Paraná Basin with the Paleozoic and Mesozoic units in light blue

}}

The Botucatu Formation is an Aptian geologic formation of the Paraná and Pelotas Basins in southern Brazil and northern Uruguay. The formation is composed of quartzitic sandstones, deposited in an eolian environment.Petrolli & Pimentel, 2014, p.1 Fossil theropod tracks have been reported from the formation.Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.

Description

The sandstone is fine-textured and well sorted, containing no pebbles; its colour is occasionally white, yellowish, and reddish, but more commonly it is pinkish. Nearly always it is silicified and therefore compact and hard. The formation was deposited in an arid desert environment, characterized by sabkhas and wadis.Leonardi, 1994, p.50

Fossil content

Among the following fossils were reported from the Botucatu Formation:[https://paleobiodb.org/classic/displayCollResults?collection_no=56560 São Bento quarry, Araraquara] at Fossilworks.org

Coelurosauria indet.
Lacertilia indet.
Mammalia indet.
Ornithopoda indet.
Theropoda indet.
?Tritylodontoidea indet.
Vespersaurus paranensis{{cite journal | title=A new desert-dwelling dinosaur (Theropoda, Noasaurinae) from the Cretaceous of south Brazil | last1=Langer | first1=Max Cardoso | last2=de Oliveira Martins | first2=Neurides | last3=Manzig | first3=Paulo César | last4=de Souza Ferreira | first4=Gabriel | last5=de Almeida Marsola | first5=Júlio César | last6=Fortes | first6=Edison | last7=Lima | first7=Rosana | last8=Sant’ana | first8=Lucas Cesar Frediani | last9=da Silva Vidal | first9=Luciano | last10=da Silva Lorençato | first10=Rosangela Honório | last11=Ezcurra | first11=Martín Daniel Ezcurra | journal=Scientific Reports | year=2019 | volume=9 | issue=1 | pages=9379 | doi=10.1038/s41598-019-45306-9| pmid=31243312 | pmc=6594977 | bibcode=2019NatSR...9.9379L }}

;Ichnofossils

Brasilichnium elusivum
Farlowichnus rapidus{{Cite journal |last1=Leonardi |first1=Giuseppe |last2=Fernandes |first2=Marcelo Adorna |last3=Carvalho |first3=Ismar de Souza |last4=Schutzer |first4=Julia Beatrice |last5=Silva |first5=Rafael Costa da |date=2023-09-30 |title=Farlowichnus rapidus new ichnogen., new ichnosp.: A speedy and small theropod in the Early Cretaceous Botucatu paleodesert (Paraná Basin), Brazil |url=https://www.sciencedirect.com/science/article/pii/S0195667123002483 |journal=Cretaceous Research |volume=153 |pages=105720 |doi=10.1016/j.cretres.2023.105720 |issn=0195-6671}}
Lacertoidea indet.{{Cite journal |last=Buck |first=Pedro Victor |last2=Ghilardi |first2=Aline Marcele |last3=de C.P. e M. Peixoto |first3=Bernardo |last4=Aureliano |first4=Tito |last5=Fernandes |first5=Marcelo Adorna |date=1 June 2022 |title=Lacertoid tracks from the Botucatu Formation (Lower Cretaceous) with different locomotor behaviors: A new trackmaker with novel paleoecological implications |url=https://www.sciencedirect.com/science/article/abs/pii/S0895981122001158 |journal=Journal of South American Earth Sciences |volume=116 |pages=103825 |doi=10.1016/j.jsames.2022.103825 |issn=0895-9811 |access-date=9 December 2024 |via=Elsevier Science Direct}}

References

= Bibliography =

{{citation |last=Leonardi |first=Giuseppe |year=1994 |title=Annotated Atlas of South America Tetrapod Footprints (Devonian to Holocene) with an appendix on Mexico and Central America |url=https://www.researchgate.net/publication/309643073 |publisher=Ministerio de Minas e Energia - Companhia de Pesquisa de Recursos Minerais, Geological Service of Brazil |pages=1–248 |accessdate=2019-03-25}}
{{citation |last1=Petrolli |first1=Larissa |last2=Pimentel Mizusaki |first2=Ana Maria |year=2014 |title=Formação Botucatu (Jurássico, Bacia do Paraná) – análogo como reservatório de hidrocarbonetos para as bacias da margem continental brasileira |url=https://www.lume.ufrgs.br/bitstream/handle/10183/113303/Poster_35170.pdf?sequence=2 |publisher=Universidade Federal do Rio Grande do Sul |pages=1 |accessdate=2017-09-09}}
{{citation |last1=Weishampel |first1=David B. |author2-link=Peter Dodson |last2=Dodson |first2=Peter |author3-link=Halszka Osmólska |last3=Osmólska |first3=Halszka |year=2004 |title=The Dinosauria, 2nd edition |url=https://books.google.com/books?id=vtZFDb_iw40C |publisher=Berkeley: University of California Press |pages=1–880 |accessdate=2019-02-21 |isbn=0-520-24209-2 |author1-link=David B. Weishampel }}

Botucatu Formation

Description

Fossil content

See also

References

= Bibliography =

Further reading