| Fossil range | late Paleocene - early Eocene[1] |
|---|---|
| Display parents | 4 |
| Taxon | Tytthaena |
| Parent authority | Gunnell & Gingerich, 1991[2] |
| Authority | Gingerich, 1980[3] |
| Type species | †Tytthaena parrisi |
| Type species authority | Gingerich, 1980 |
| Subdivision ranks | Species |
| Subdivision |
Tytthaena ("little hyena") is an extinct genus of placental mammals from extinct subfamily Tytthaeninae within extinct family Oxyaenidae, that lived in North America from the late Paleocene to early Eocene.[1]
Description
Tytthaena is the smallest oxyaenid known. Morphologically, it resembles Oxyaena. It can be distinguished from other oxyaenids by its size and dentition. Its molars were narrow, with elongate talonids.[3][4]
References
- ^ "Tytthaena". Fossilworks
- ^ Gunnel, Gregg F. & Gingerich, Philip D. (1991). "Systematics and evolution of late Paleocene and early Eocene Oxyaenidae (Mammalia, Creodonta) in the Clarks Fork Basin, Wyoming". Contributions from the Museum of Paleontology. 28 (7): 141–180. The University of Michigan.
- ^ P. D. Gingerich. (1980.) "Tytthaena parrisi, Oldest Known Oxyaenid (Mammalia, Creodonta) from the Late Paleocene of Western North America." Journal of Paleontology 54(3):570-576
- ^ K. D. Rose. (1981.) "The Clarkforkian Land-Mammal Age and Mammalian Faunal Composition Across the Paleocene-Eocene Boundary." University of Michigan Papers on Paleontology 26:1-197