In the middle Eocene formations of North America occurs the more specialized Uintatherium (or Dinoceras), typifying the family Uintatheriidae.
始新世中期的北美洲,出现了更专的尤兽,是属兽科。
In the middle Eocene formations of North America occurs the more specialized Uintatherium (or Dinoceras), typifying the family Uintatheriidae.
始新世中期的北美洲,出现了更专的尤兽,是属兽科。
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