Genus: Potamornis ELZANOWSKI, PAUL & STIDHAM, (2000) 2001
Etymology: Greek, potamos, "river" and Greek, ornis, "bird"; River bird.

Species: skutchi ELZANOWSKI, PAUL & STIDHAM, (2000) 2001
Etymology: In honor of Dr. Alexander F. Skutch, an eminent ornithologist, in recognition of his respect for birds’ lives.

Holotype: UCMP 73103

Locality: UCMP V-5620, Lull Quarry, near the head of a tributary of Buck Creek, Powder River Basin, Niobrara County (Formerly Converse County), Wyoming.

Horizon: Upper Lance Formation.


Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material: Quadrate.

Referred material:

UCMP 117605: Tarsometatarsus.
Note: Tentatively referred.