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tetrapod |
Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson | 0.03 sec. |
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tetrapod [′te·trə‚päd] (vertebrate zoology) A four-footed animal. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| In part one, Fraser describes how certain geographic areas sustained life despite the Permian extinction and how early Triassic fish and tetrapods evolved into dinosaurlike creatures. The fish also has a flat skull like a crocodile's, a neck, ribs, and other parts similar to those of early four-legged land animals known as tetrapods. Bats vertebrates, or animals with a backbone, and tetrapods, or four,legged animals. |
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