Hemipsalodon

{{Short description|Extinct genus of mammals}}

{{Automatic taxobox

|fossil_range = {{fossil_range|41.2|37.0}} Middle to Late Eocene

|image = Hemipsalodon skull.jpg

|image_caption = Skull of Hemipsalodon grandis

|image2 = Hemipsalodon grandisDB.jpg

|image2_caption = Restoration of H. grandis

|display_parents = 3

|taxon = Hemipsalodon

|authority = Cope, 1885

|type_species = †Hemipsalodon grandis

|type_species_authority = Cope, 1885

|subdivision_ranks = Species

|subdivision =

  • H. grandis {{small|(Cope, 1885)}}E. D. Cope (1885.) [https://www.jstor.org/stable/2450040?seq=1 "The White River beds of Swift Current River, Northwest Territory."] American Naturalist 19(2):163
  • H. viejaensis {{small|(Gustafson, 1986)}}E. P. Gustafson (1986.) [https://www.researchgate.net/publication/278410371_Carnivorous_mammals_of_the_Late_Eocene_and_Early_Oligocene_of_Trans-Pecos_Texas "Carnivorous mammals of the Late Eocene and Early Oligocene of Trans-Pecos Texas."] Texas Memorial Museum Bulletin 33:1-66

|synonyms =

{{collapsible list |bullets=true |title=synonyms of species:

|{{collapsible list |bullets=true |title=H. grandis:

|Hemipsalodon cooki {{small|(Schlaikjer, 1935)}}{{cite journal |last=Schlaikjer |first=Erich M. |year=1935 |title=Contributions to the stratigraphy and paleontology of the Goshen Hole area, Wyoming. III. A new basal Oligocene formation |journal=Bulletin of the Museum of Comparative Zoology |volume=76 |issue=3 |pages=71–93 |url=https://www.biodiversitylibrary.org/page/28866353}}

}} }}

}}

Hemipsalodon ("half-scissor tooth") is an extinct genus of hyainailourid hyaenodonts from the subfamily Hyainailourinae that lived in North America during the middle to late Eocene.{{cite book |last1=McKenna |first1=Malcolm C. |last2=Bell |first2=Susan K. |title=Classification of Mammals Above the Species Level |url=https://books.google.com/books?id=OLYifwU8bqQC&pg=PP9 |access-date=16 March 2015 |year=1997 |publisher=Columbia University Press |location=New York |isbn=978-0-231-11012-9}}G. F. Gunnell (1998.) "Creodonta". In C. M. Janis, K. M. Scott, and L. L. Jacobs (eds.), [https://books.google.com/books?id=I-RgojcDyWYC "Evolution of Tertiary Mammals of North America, Volume 1: Terrestrial Carnivores, Ungulates, and Ungulate like Mammals"], Cambridge University Press, 703 pages {{page|year=|isbn=9780521355193|pages=}}

Description

The skull of Hemipsalodon grandis is {{convert|45|cm|in}} in length, with a lower jaw length of {{convert|34|cm|in}}. The most complete skull (O.M.S.I. No. 619), belonged to an old individual. It is powerfully-built, and overall superficially resembles the mesonychid Harpagolestes. The nasal opening is quite large. The canines are greatly enlarged. The anterior portion of the skull is broad anteriorly, but narrows down considerably posteriorly.{{cite journal |last=Mellett |first=James Silvan |year=1969 |title=A skull of Hemipsalodon (Mammalia, Deltatheridia) from the Clarno Formation of Oregon |journal=American Museum Novitates |issue=2387 |url=https://digitallibrary.amnh.org/handle/2246/2597 |hdl=2246/2597}}

References

{{Reflist}}

{{Pan-Carnivora|H.|state=collapsed}}

{{Taxonbar|from1=Q107547795|from2=Q118787131}}

Category:Eocene mammals of North America

Category:Hyaenodonts

Category:Prehistoric mammal genera

Category:Clarno Formation

Category:Taxa named by Edward Drinker Cope

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