pachyrhachis problematicus造句
造句与例句
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- This slender, 3-foot-long snake, Pachyrhachis problematicus, lived in a shallow sea 95 million years ago.
- The implication that the ancestors of snakes had hind legs is confirmed by fossil evidence : the Cretaceous snake " Pachyrhachis problematicus " had hind legs complete with hip bones ( pubis, ischium ), thigh bone ( femur ), leg bones ( tibia, fibula ) and foot bones ( calcaneum, astragalus ) as in tetrapods with legs today.
- It's difficult to see pachyrhachis problematicus in a sentence. 用pachyrhachis problematicus造句挺难的
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