Procynosuchidae, along with Dviniidae, were the earliest cynodonts. They appeared around 260 million years ago, and were most abundant during the latest Permian time (251 mya), shortly before the Permian-Triassic extinction event. Despite being the basal member of the cynodont clade, they already showed some of the advanced mammalian characteristi...
Found on
http://en.wikipedia.org/wiki/Procynosuchidae
(from the article `cynodont`) The suborder Cynodontia contains, according to some classifications, five families—Procynosuchidae, Galesauridae, Tritylodontidae, Chiniquodontidae, ...
Found on
http://www.britannica.com/eb/a-z/p/117
No exact match found.
