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''Amphicyoninae'' is a subfamily of extinct Amphicyonidae, large terrestrial carnivores (bear-dogs) belonging to the suborder Caniformia (meaning "dog-like") and which inhabited North America, Europe, Eurasia, Asia. and Africa from ~22.4—4.9 Ma. ''Amphicyoninae'' existed for approximately ~.〔(Paleobiology Database: ''Amphicyoninae'', age range and collections )〕 ''Amphicyoninae'' was named by Trouessart (1885). It was assigned to Canidae by Matthew (1902); to Ursidae by Ginsburg (1977); and to Amphicyonidae by Hunt (1998).〔W. D. Matthew. 1902. New canidae from the Miocene of Colorado. Bulletin of the American Museum of Natural History 16(21):281-290〕〔L. Ginsburg. 1977. Les carnivores du Miocene de Beni Mellal (Maroc). Geologie Mediterraneene 4(3):225-240〕〔R. M. Hunt. 1998. Amphicyonidae. 196-227〕 Better known genera include: *''Amphicyon'', found in both Europe and N. America *''Cynelos'', synonyms include ''Absonodaphoenus'' and ''Hecubides'', endemic to N. America *''Ischyrocyon'', ''Hadrocyon'' is a synonym, endemic to N. America *''Pliocyon'', endemic to N. America *''Pseudocyon'', ''Amphicyonopsis'' is a synonym, endemic to Europe and N. America *Thaumastocyonini, a tribe endemic to Europe *''Ysengrinia'', found in both Europe and N. America ==Fossil distribution== Specimens have been recovered from: *Midway Site, Gadsden County, Florida ~18.9—18.8 Ma. *Rabbitt Creek Site, Meagher County, Montana ~21.7—18 Ma. *Grimes Landing Site, King William County, Virginia ~17.6 Ma. *Arrisdrift, Namibia ~23.03—11.6 Ma. *Les Beilleaux, France ~20—16.9 Ma. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Amphicyoninae」の詳細全文を読む スポンサード リンク
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