Biseridens

Biseridens ("two rows of teeth") is a genus of anomodont therapsid, and one of the most basal anomodont genera known. Originally known from a partial skull misidentified as an 'eotitanosuchian' in 1997, another well-preserved skull was found in the Xidagou Formation, an outcropping in the Qilian Mountains of Gansu, China, in 2009 that clarified it's relationships to anomodonts, such as the dicynodonts.[1]