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Definition of Synapsida
1. Noun. Extinct reptiles of the Permian to Jurassic considered ancestral to mammals.
Exact synonyms: Subclass Synapsida
Group relationships: Class Reptilia, Reptilia
Member holonyms: Order Therapsida, Therapsida, Ictodosauria, Order Ictodosauria, Order Pelycosauria, Pelycosauria
Generic synonyms: Class
Group relationships: Class Reptilia, Reptilia
Member holonyms: Order Therapsida, Therapsida, Ictodosauria, Order Ictodosauria, Order Pelycosauria, Pelycosauria
Generic synonyms: Class
Lexicographical Neighbors of Synapsida
Other Resources:
