Cotylosaur

(from the article `reptile`) ...of reptiles are known from Paleozoic times—i.e., Carboniferous (280,000,000–345,000,000 years ago) and Permian (225,000,000–280,000,000 years ...
Found on http://www.britannica.com/eb/a-z/c/149

Cotylosaur

Cotylosaur “Stem lizards” that evolved from amphibians during the Early Carboniferous period. and went extinct at the end of the Triassic period.
Found on http://www.wordinfo.info/words/index/info/view_unit/552/

Cotylosaur

Cotylosaurs (or Captorhinids) are stem reptiles, primitive anapsids that led to the reptiles (including turtles), birds, and mammals . They evolved from amphibians during the Early Carboniferous period, about 340 million years ago and went extinct at the end of the Triassic period , about 250 million years ago. They had four sprawling legs and a lo...
Found on http://www.enchantedlearning.com/subjects/dinosaurs/glossary/
No exact match found