plural noun
Pa·​reia·​sau·​ri·​dae | \ pəˌrīəˈsȯrəˌdē\

Definition of Pareiasauridae 

: a widely distributed family of Permian terrestrial reptiles (order Cotylosauria) — see pareiasaurus

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History and Etymology for Pareiasauridae

New Latin, from Pareiasaurus, type genus + -idae

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