1 of 2

plural noun

: a group of extinct reptiles usually considered a suborder of Therapsida but sometimes classified as a separate order that are characterized by teeth which are differentiated into incisors, prominent canines, and molars with numerous cusps and that are known mostly from skulls found in the Permian and Triassic formations of southern Africa


2 of 2
variants or Theriodonta

taxonomic synonym of pelycosauria

Word History


Plural noun

New Latin, from Greek thēri- therio- + New Latin -odontia

New Latin, from Greek thēri- therio- + New Latin -odontia or -odonta

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Dictionary Entries Near Theriodontia

Cite this Entry

“Theriodontia.” Dictionary, Merriam-Webster, Accessed 25 Jul. 2024.

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