Mesotheriidae
- 中黑格兽科（中黑格兽科是南美洲始新世至更新世的已灭绝有蹄目哺乳动物，包括小至中型的草食性及适合挖掘的物种）
Mesotheriidae
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abstract:
First appearance from Reguero and Castro (2004) with age of fauna following Shockey and Flynn (2007); last appearance from McKenna & Bell (1997).
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WordNet