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Therapsida |
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Therapsida [thə′rap·səd·ə] (paleontology) An order of mammallike reptiles of the subclass Synapsida which first appeared in mid-Permian times and persisted until the end of the Triassic. 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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| Among the Therapsids was the gorgon, a 10-foot-long monster resembling a hybrid of lion and lizard. |
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