Ichthyornithes

plural noun
Ich·​thy·​or·​ni·​thes | \ -ˌȯrˈnī(ˌ)thēz\

Definition of Ichthyornithes

in some classifications
: a superorder of extinct birds coextensive with the order Ichthyornithiformes

History and Etymology for Ichthyornithes

New Latin, from plural of Ichthyornis

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