In the middle Eocene formations of North America occurs the more specialized Uintatherium (or Dinoceras), typifying the family Uintatheriidae.
始新世中期北美洲,出现了更为专因兽,犹因兽科。
In the middle Eocene formations of North America occurs the more specialized Uintatherium (or Dinoceras), typifying the family Uintatheriidae.
始新世中期北美洲,出现了更为专因兽,犹因兽科。
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