Extinct reptiles of the Permian to Jurassic considered ancestral to mammals. Synonym: subclass Synapsida.
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Words linked to "Synapsida" : Ictodosauria, subclass Synapsida, order Pelycosauria, Therapsida, Reptilia, order Ictodosauria, order Therapsida, Pelycosauria, class, class Reptilia |
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