Tritylodontidae Directory References Images Discover Why Is the Mona Lisa So Famous? Were the Nazis Socialists? Which Religion Is the Oldest? 8 of the World’s Most-Remote Islands Is Australia an Island? All 81 References in Fall Out Boy’s “We Didn’t Start the Fire,” Explained Why Is Pluto No Longer a Planet? Contents Tritylodontidae fossil tetrapod family Ask the Chatbot a Question Ask the Chatbot a Question Learn about this topic in these articles:characteristics of cynodonts In cynodont…known forms—members of the family Tritylodontidae (which were closely related to mammals and their closest extinct relatives)—died out about 125 million years ago.Read More