Short-snouted bears

Short-snouted bears
	Spectacled Bear ( Tremarctos ornatus )
Systematics
Subclass :	Higher mammals (Eutheria)
Superordinate :	Laurasiatheria
Order :	Predators (Carnivora)
Subordination :	Canine (Caniformia)
Family :	Bears (Ursidae)
Subfamily :	Short-snouted bears
Scientific name
	Tremarctinae
	Merriam & Stock , 1925

The short- snouted bears (Tremarctinae) are a subfamily of bears . The short-snouted bears used to be widespread across North and northern South America. Today, like the short- faced bear ( Arctodus simus ) and Tremarctos floridanus, they are largely extinct. The short- snouted bears were one of the largest known bear species with the species Arctotherium angustidens , which occurred in Argentina in the middle Pleistocene and whose representatives reached a weight of 1.6 to 1.7 t.

Only one species, the spectacled or Andean bear ( Tremarctos ornatus ), has survived to this day.

Species of the Tremarctinae

Tremarctinae
- † Plionarctos (Frick, 1926)
  - † Plionarctos harroldorum (Tedfored & Martin, 2001)
  - † Plionarctos edensis (Frick, 1926)
- † Arctodus (Leidy, 1854)
  - † Arctodus simus (Cope, 1879)
  - † Arctodus pristinus (Leidy, 1854)
- † Arctotherium (Burmeister, 1879)
  - † Arctotherium angustidens (Gervais & Ameghino, 1880)
  - † Arctotherium vetustum (Ameghino, 1885)
  - † Arctotherium wingei (Ameghino, 1902)
  - † Arctotherium bonariense (Gervais, 1852)
  - † Arctotherium tarijense (Ameghino, 1902)
- Tremarctos (Gervais, 1855)
  - † Tremarctos floridanus (Gildey, 1928)
  - Tremarctos ornatus (Cuvier, 1825)

literature

Blaine W. Schubert and James E. Kaufmann: A partial short-faced bear skeleton from an Ozark cave with comments on the paleobiology of the species. Journal of Cave and Karst Studies 65 (2): 101-110. PDF

Individual evidence

↑ Leopoldo H. Soibelzon and Blaine W. Schubert: The Largest Known Bear, arctotherium angustidens, from the Early Pleistocene Pampean region of Argentina: With a Discussion of Size and Diet trends Bears. Journal of Paleontology, 85 (1), 2011, pp. 69-75

Web links

Evolution of the Subfamily Tremarctinae (sp.)

[1] Leopoldo H. Soibelzon and Blaine W. Schubert: The Largest Known Bear, arctotherium angustidens, from the Early Pleistocene Pampean region of Argentina: With a Discussion of Size and Diet trends Bears. Journal of Paleontology, 85 (1), 2011, pp. 69-75