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Tytthaena

Extinct genus of mammals From Wikipedia, the free encyclopedia

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]

Phylum:Chordata
Class:Mammalia
Infraclass:Placentalia
Quick facts Scientific classification, Type species ...
Tytthaena
Temporal range: 58.9–55.4 Ma late Paleocene - early Eocene[1]
part of left maxilla of Tytthaena parrisi
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Infraclass: Placentalia
Clade: Pan-Carnivora
Order: Oxyaenodonta
Family: Oxyaenidae
Subfamily: Tytthaeninae
Gunnell & Gingerich, 1991[2]
Genus: Tytthaena
Gingerich, 1980[3]
Type species
Tytthaena parrisi
Gingerich, 1980
Species
  • T. lichna (Rose, 1981)[4]
  • T. parrisi Gingerich, 1980[3]
Synonyms
synonyms of subfamily:
  • Tyttaeninae Lavrov, 1999[5]
synonyms of genus:
  • Tyttaena Lavrov, 1999
synonyms of species:
  • T. lichna:
    • Oxyaena lichna Rose, 1981
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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]

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