Species: parvum MOODIE, 1910b
Etymology: Latin, parvus, "small."
= Micrerpeton caudatum GREGORY 1950 non MOODIE 1910

Holotype: YPM 803

Locality: Mazon Creek near Morris, 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: Skull and skeleton.

Referred material:

YPM 802: Skull and skeleton.