Ichthyornithidae

plural noun
Ich·thy·or·nith·i·dae | \-ˌȯrˈnithəˌdē\

Definition of Ichthyornithidae 

: a family of extinct birds (order Ichthyornithiformes) from the Upper Cretaceous of North America that comprises the genus Ichthyornis and in some classifications Apatornis and possibly one other genus

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History and Etymology for Ichthyornithidae

New Latin, from Ichthyornith-, Ichthyornis, type genus + -idae

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