cynodont

Trityldon(Greek for 3 cusped tooth) was a species of tritylodont, one of the most advanced group of cynodont therapsids.

三是三中的一属，而三类是犬类中最先的一群。

Despite being the basal member of the cynodont clade, they already showed some of the advanced mammalian characteristics, but Procynosuchids bore resemblance to the Therocephalians.

即使犬鳄龙始，牠们已有先的哺乳类特徵。犬鳄龙外表与头亚目动物有点类似。