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Ursus etruscus
''Ursus etruscus'' (Etruscan bear) is an extinct species of mammal of the family Ursidae (bears), endemic to Europe, Asia and North Africa during the Pliocene through Pleistocene, living from ~5.3 Mya—11,000 years ago, existing for approximately .
''Ursus etruscus'' appears to have come from ''Ursus minimus'' and gave rise to the brown bear, ''Ursus arctos'', and the cave bear, ''Ursus spelaeus''. The range of ''Ursus etruscus'' is mostly continental Europe with specimens also recovered in the Great steppe region of Eurasia. The latest fossil evidence for ''Ursus etruscus'' was recovered in Israel, Croatia, and Toscana, Italy dating at 1.8 Mya to 11,000 years.
Some scientists have proposed that the early, small variety of ''U. etruscus'' of the middle Villafranchian era survives in the form of the modern Asian black bear.〔(''Aspects of Evolution and Adaptation in American Black Bears (Ursus americanus Pallas) and Brown and Grizzly Bears (U. arctos Linne.) of North America'', Stephen Herrero, Research Associate, Environmental Sciences Centre (Kananaskis), and Assistant Professor, Department of Biology and Psychology, University of Calgary, Alberta. )〕
==Morphology==
Not unlike the brown bears of Europe in size, it had a full complement of premolars, a trait carried from the genus ''Ursavus''.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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