Genus: Trimerorhachis COPE, 1878
Species: insignis COPE, 1878
Refered material:
WITZMAN, 2007
Locality: Baylor County, Texas.
Horizon: Waggoner Ranch Formation (formerly Clyde Formation, upper Wichita Group) Upper Wichita Group.
Biostratigraphy: Land-vertebrate faunachron lower to middle C.
Age: Lower Leonardian Stage, Lower Rotliegendes Epoch, Early Permian.
Material:
MCZ 1080: Pectoral girdle, vertebrae dorsal and gastral scales.