Cynognathus

Cynognathus is a therapsid that was the size of a wolf. This predator lived on open plains during the early to middle Triassic period, roughly 230-245 million years ago. It was probably warm-blooded, and females may have given birth to live young. Fossils have been found in South Africa and Argentina with four other creatures of the time: Lystrosaurus, Proterosuchus, Euparkeria and Erythrosuchus.

 Anatomy 

 Locomotion 
Cynognathus' limbs were likely partially splayed out to the side, this is called semi-sprawling limbs. Semi-sprawling limbs are a step away from sprawling limbs, which allows for greater speed and stamina.

 Jaw 
Cynognathus is a Cynodont, which means it has differentiated teeth, for different functions, unlike some of the first Synapsids. This allows Cynognathus to bite and tear it's food more easily and fast.
category:Theriodonts

 Phylogeny (Evolution Tree) 
Cynognathus was in a clade called Cynognathia, a sister group to Probainognathia. This means it was not a mammal. 

Below is Cyngonathus' family tree(cladogram):
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