Tremarctinae
Ursidae
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Tremarctini
The Tremarctini, the short-faced bears, are a tribe belonging to the family Ursidae (bears) endemic to North America and Europe during the Miocene to Holocene, living from about 13.6 Mya to the present. Tremarctini was named by Frick (1926). Its type is Plionarctos edensis. It was assigned to Ursidae by Frick (1926) and Carroll (1988); and to Tremarctinae by Hunt (1998). This tribe includes four genera: Arctodus, Arctotherium, Plionarctos, and Tremarctos, with the latter containing both extinct and extant species (e.g., Florida cave bear and spectacled bear).