Species: branchialis MOODIE, 1912
Etymology:

Holotype: YPM 801 (222) 5

Locality: Mazon Creek, Grundy County, Illinois.

Horizon: Carbondale Formation, Frances Creek Shale.

Biostratigraphy:

Age: Westphalian D, Lower Upper Silesian, Desmoniensean, Myachkovskian Stage, upper Moscovian Epoch, Late Pennsylvanian (Late Carboniferous).

Material: Mandible, and some rather indefinite body impressions.