Genus: Tetraceratops MATTHEW, 1908
Etymology: Greek, tetras, "four," Greek, kerat (keras), "horn" and Greek, ops, "face": Four horn face.

Species: insignis MATTHEW, 1908908
Etymology:

Holotype: AMNH 4526

Locality: Big Wichita River, Baylor County, Texas.

Horizon: Arroyo Formation, Lower Clear Fork Group.

Biostratigraphy: Land-vertebrate faunachron lower D.

Age: Middle Leonardian stage, upper Rotliegendes, Early Permian.

Material: Skull missing anterior end and dentary.

After, ROMER & PRICE, 1945.

After SPINDLER, 2020.