Aetosaurinae

Aetosaurinae is one of the two subfamilies of aetosaurs, the other being Desmatosuchinae. It is a stem-based taxon defined as all aetosaurs more closely related to Aetosaurus than to the last common ancestor of Aetosaurus and Desmatosuchus. The only synapomorphy that diagnoses the clade Aetosaurinae is the medial offset of the dorsal eminences of ...
Found on http://en.wikipedia.org/wiki/Aetosaurinae
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