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Didymictis
''Didymictis'' is an extinct genus of carnivorous mammals known from the late Paleocene and early Eocene (Tiffanian-Gardnerbuttean〔The Gardnerbuttean is a transitional stage between the Wasatchian and Bridgerian Land Mammal Ages. ()〕 NALMA) of North America.〔 This genus in the family Viverravidae contains five species.
''Didymictis'' is the only viverravid for which there are considerable postcranial remains. The genus was primarily terrestrial but at least partly cursorial, similar to a civet.
==Description==
''Didymictis'' has an elongated and relatively large skull with small and low braincase and a long and narrow basicranial region. The occipital and saggital crests are very high. The limbs are of moderate length with subdigitigrade and five-toed feet. The dentition () contrast those of miacids by the sharp differentiation between sectorial and tubercular dentition, the loss of the last molar and an elongated second molar, similar to the dentition in bears and raccoons.
Comparing ''Didymictis'' to ''Vulpavus'', a much smaller and more agile viverravid, noted that ''Didymictis''' limbs, especially the hindlimb, are similar to those in extant carnivornas adapted for speed, and the forelimbs to some extent are specialized to digging. The authors concluded that ''Didymictis'' was a relatively specialized terrestrial carnivore capable of hunting with speed or pursuing by digging.
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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