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出典:Wikipedia
出典:『Wikipedia』 (2010/12/24 12:41 UTC 版)
Adilophontes is an extinct genus of large, mostly carnivorous bone-crushing mammals known as bear dogs, of the family Amphicyonidae, endemic to North America during the Oligocene to Miocene, living from 24.8—20.6 Ma and existed for approximately 4.2 million years.
Adilophontes