Therocephalia



Therocephalians are an suborder of carnivorous mammal-like-reptiles that lived from the middle and late Permian to present day 265.0—.0 Ma existing for approximately to Present day

The therocephalians ("beast-heads") are named after their large skulls, which, along with the structure of their teeth, suggest that they were successful carnivores. Like other non-mammalian synapsids. therocephalians are often described as "mammal-like reptiles",. In fact, Therocephalia is the group most closely related to the cynodonts, which gave rise to the mammals. This relationship takes evidence in a variety of anatomical features, possibly including whiskers and hair. There remain many unanswered questions about the phylogeny, anatomy, and physiology of therocephalians.

Although almost every therocephalian lineage ended during the great Permian–Triassic extinction event, a few representatives of the subgroup called Eutheocephalia survived into the Early Triassic and continued to diversify. However, the last therocephalians became extinct by the early Middle Triassic, possibly due to climate change and competition with cynodonts and various groups of reptiles.

a group of these theocephalians called Cynodontosaurs survived into the portial of the digital world and Survived Extinction