| 单词 | Theriodontia | 
| 释义 | Theriodontia1 of 2plural noun  The·ri·odon·tia   ˌthirēəˈdänch(ē)ə   : 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   Theriodontia2 of 2 "  variants  or Theriodonta  ˌthirēəˈdäntə taxonomic synonym of pelycosauria | 
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