Species: cordatus COPE, 1881
Locality: Archer City Bone Bed, Archer City, Archer County, Texas.
Horizon: Archer City Formation (formerly Putnam Formation), Wichita Group.
Age: Leonardian series, Upper Rotilegendes Epoch, Early Permian.
MCZ 3302: Anterior portion of skeleton articulated with skull, including vertebral column and ribs, pectoral girdle and forelimbs, dermal armor.