Species: hamiltonensis REISZ & DILKES, 2003
Etymology: In reference to the locality where the specimen was found, the Hamilton
Quarry, near Hamilton, Greenwood County, Kansas.
Holotype: KUVP 12483
Locality: Hamilton Quarry, near Hamilton, Greenwood County, Kansas.
Horizon: Calhoun Shale, Shawnee Group.
Biostratigraphy:
Age: Virgilian Series (Stephanian of Europe), Gzelian Epoch, Late Pennsylvanian.
Material: Skull and skeleton.