Species: hottoni OLSON & BEERBOWER, 1953
Etymology: In honor of Nicholas Hotton III of the United Museum of Natural History
Holotype: FMNH (CNHM) UR 146
Locality: Sublocality HA, Pease River, Hardeman County, Texas.
Horizon: Flowerpot Member, Upper San Angelo Formation, Lower Pease River Group.
Biostratigraphy: Land-vertebrate faunachron lower E.
Age: Lower Guadalupian Stage, Upper Rotliegendes Epoch, Early Permian.
Material: A pair of partially complete lower jaw.
Referred material:
FMNH (CNHM) UR 145: Fragments of symphysis of lower jaw with root of large canine.
FMNH (CNHM) UR 147: Fragments of lower jaw and fragmentary skull.