Tremarctos floridanus

Tremarctos floridanus
Temporal range: Pliocene–Pleistocene
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Family: Ursidae
Subfamily: Tremarctinae
Tribe: Tremarctini
Genus: Tremarctos
Species: T. floridanus
Gidley, 1928
Binomial name
Tremarctos floridanus

Tremarctos floridanus, occasionally called the Florida spectacled bear or rarely Florida short-faced bear is an extinct species of bear in the family Ursidae, subfamily Tremarctinae. T. floridanus was endemic to North America from the Pliocene to Pleistocene epoch (4.9 mya—11,000 years ago), existing for approximately 4.889 million years.[1]

Contents

Environment

T. floridanus was widely distributed south of the continental ice sheet, along the Gulf Coast across through Florida and north to Tennessee, and across the southern United States to California.

Arctodus (3 million—11,000 years ago) was a contemporary and shared its habit with T. floridanus. The closest living relative of the Florida cave bear is the Spectacled Bear of South America; they are classified together with the huge short-faced bears in the subfamily Tremarctinae. They became extinct at the end of the last ice age,10,000 years ago due to some combination of climate change and hunting by newly arrived Paleo-Indians.

Taxonomy

Originally Gidley named this animal Arctodus floridanus in 1928. It was recombined as Tremarctos floridanus by Kurten (1963), Lundelius (1972) and Kurten and Anderson (1980).[2][3]

Fossil distribution

Sites and specimen ages (not complete):

References

  1. ^ PaleoBiology Database: Tremarctus, basic info
  2. ^ E. L. Lundelius. 1972. Bureau of Economic Geology Report of Investigations 77.
  3. ^ B. Kurten and E. Anderson. 1980. Pleistocene mammals of North America 1-442 [J. Alroy/J. Alroy/J. Alroy.

Fossils of Florida