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单词 litoptern
释义

litoptern

/lɪˈtɒptəːn /
noun
An extinct South American hoofed mammal resembling a horse or camel, found from the Palaeocene to the Pleistocene epochs.
  • Order Litopterna: several families.
Many strange mammals - litopterns, notoungulates, ground sloths, borhyeanas, etc - continued to evolve in isolation in South America before a land bridge formed and allowed a devastating invasion of forms from the north.

Origin

Early 20th century: from modern Latin Litopterna, from Greek litos 'smooth' + pternē 'heel bone'.

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更新时间:2024/11/12 9:45:19