Species: dolichognathus WILLISTON, 1915
Etymology:

Holotype: YPM 827

Locality: El Cobre Canyon, Rio Arriba County, New Mexico.

Horizon: Lower Cutler Formation.

Biostratigraphy:

Age: Virgilian, Gzelian Epoch, Late Pennsylvanian.

Material: Left dentary.

Note: Found with the type specimen of Limnoscelis.

Referred material:

OMNH 56871: Fragmentary skull and fragmentary skeleton.