Any of various extinct ungulate mammals of the Eocene to Pleistocene epochs, having distinctive three-clawed, three-toed feet.

一种已灭绝的始新世和更新世的有蹄哺乳动物，其特征为有三爪，每爪有三趾。

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Any of various extinct ungulate mammals of the Eocene to Pleistocene epochs, having distinctive three-clawed, three-toed feet.

一种已灭绝的始新世和更新世的有蹄哺乳动物，其特征为有三爪，每爪有三趾。

youdao