plural noun
Palae·​og·​na·​thae | \ ˌpālēˈägnəˌthē, ˌpal-\

Definition of Palaeognathae

in some especially former classifications
: a superorder of the subclass Neornithes comprising birds with a primitive reptilian type of palate that are now usually included in Neognathae

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Other Words from Palaeognathae

palaeognathic \ ¦⸗⸗əg¦nathik \ or palaeognathous \ ¦⸗⸗¦ägnəthəs \ adjective

History and Etymology for Palaeognathae

New Latin, from pale- + -gnathae

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