Species: richardi MODESTO, SCOTT, & REISZ, 2018
Etymology: In honor of Richard David Kaiser, member of the Dallas/Fort Worth, Texas, USA, amateur paleontological community.
Holotype: OMNH 77609
Locality: Fort Sill, OMNH Locality V51, Dolese Brothers limestone quarry at Richards Spur, Fissure Fills, just west of U.S. Highways 62 & 281, 10.5 miles south of Apache, 6 miles north of Fort Sill, SW 1/2, Sec. 31, T4N, R11W, Comanche County, Oklahoma.
Horizon: Willington Formation (Garber Formation), Summer Group.
Age: Middle Leonardian stage, upper Rotliegendes Epoch, Early Permian.
Material: A partial subadult skull with associated vertebrae.
OMNH 77610: Greater part of a mostly articulated, dorsoventrally-compressed skull wiht a few postcranial elements.
OMNH 77611: A right premaxilla.
OMNH 77612: Greater part of a small left maxilla with 11 tooth positions.
OMNH 77613: Fragment of anterior end of medium-sized right maxilla with three complete teeth and a single alvelous.
OMNH 77614: Fragment of anterior end of small, right maxilla with two complete teeth adn two tooth stumps.
OMNH 78657: Fragment of small, right maxilla with two complete teeth and a large alvelous.
OMNH 78658: Anterior fragment of large, right dentary with two complete teeth.