Exaeretodon

Time to do another quick clades overview. This time, we're going to head to the base of the mammal family tree! In this instance, I am talking about the Eucynodontia. As a clade, we are looking at the least inclusive group including mammals and Exaeretodon (foreshadow!); in my personal system, this will refer to the Cynognathia as a 'basal' group (plus a few taxa ancestral to that), sister to the Probainognathia (which contains true mammals and their closer ancestors, broken…