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Borophagus
''Borophagus'' ("gluttonous eater") is an extinct genus of the subfamily Borophaginae, a group of canids endemic to North America from the Late Miocene epoch through the late Pliocene epoch 12—2 Mya.〔
==Evolution==
''Borophagus'', like other borophagines, are loosely known as "bone-crushing" or "hyena-like" dogs. Though not the most massive borophagine by size or weight, it had a more highly evolved capacity to crunch bone than earlier, larger genera such as ''Epicyon'', which seems to be an evolutionary trend of the group (Turner, 2004). During the Pliocene epoch, ''Borophagus'' began being displaced by ''Canis'' genera such as ''Canis edwardii'' and later by ''Canis dirus''. Early species of ''Borophagus'' were placed in the genus ''Osteoborus'' until recently, but the genera are now considered synonyms.〔
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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