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cotylosaur

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noun co·ty·lo·saur \ˈkä-tə-lō-ˌsȯr, kə-ˈti-lə-\

Definition of cotylosaur

  1. :  any of an order (Cotylosauria) of extinct primitive reptiles of the Carboniferous to Triassic with short legs and massive bodies that were probably the earliest truly terrestrial vertebrate animals



Origin and Etymology of cotylosaur

ultimately from Greek kotylē + sauros lizard


First Known Use: 1895


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