Hemipsalodon Temporal range: Eocene Middle to Late | |
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Skull of Hemipsalodon grandis | |
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Restoration of H. grandis | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | † Hyaenodonta |
Superfamily: | † Hyainailouroidea |
Family: | † Hyainailouridae |
Subfamily: | † Hyainailourinae |
Genus: | † Hemipsalodon Cope, 1885 |
Type species | |
†Hemipsalodon grandis Cope, 1885 | |
Species | |
Synonyms | |
synonyms of species:
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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. [4] [5]
The skull of Hemipsalodon grandis is 45 centimetres (18 in) in length, with a lower jaw length of 34 centimetres (13 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. [6]