Palaeognathae
plural noun
Palae·og·na·thae
ˌpālēˈägnəˌthē,
ˌpal-
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
palaeognathic
adjective
¦⸗⸗əg¦nathik
or palaeognathous
¦⸗⸗¦ägnəthəs
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Merriam-Webster unabridged
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