Deinocephalia

plural noun

Dei·​no·​ce·​pha·​lia

ˌdīnōsə̇ˈfālyə

: a suborder of Therapsida comprising reptiles known from Permian fossils of southern Africa and Russia that had massive skulls and heavy legs and included the largest of the reptiles foreshadowing mammals, some exceeding the modern rhinoceros in size

deinocephalian

¦⸗⸗⸗¦fālyən

adjective or noun

Word History

Etymology

New Latin, from din- + cephal- + -ia

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