Definitions

1. noun

A member of a group of therapsid synapsids that lived during the Mesozoic Era, characterized by the presence of canine-like teeth and a more advanced mammalian-like skull.

“Fossil discoveries have revealed that cynodonts were one of the earliest mammal-like species to evolve on Earth.”

2. noun

Any of various extinct mammals belonging to the group Cynodontia, characterized by their advanced mammalian-like features.

“Cynodonts were among the first mammals to develop more advanced dental structures.”