Genus: Laopteryx MARSH, 1881 (nomen dubium)
Etymology: Greek, laas, "stone" and Greek, pteryx, "wing."

Species: prisca (MARSH, 1881) emend BROADKORB, 1971
Etymology: Latin, priscus, “ancient, of venerable age."
= Laopteryx priscus MARSH, 1881

Holotype: YPM 1800

Locality: Reeds YPM Quarry 9, (Mammal Quarry), T22N, R77W, Sec. 12, Como Bluff, Albany County, Wyoming.

Horizon: Brushy Basin Member, Morrison Formation.

Biostratigraphy: Zone 3.

Age: Upper Part, Comobluffian age, Kimmeridgian Stage, uppermost Malm Epoch, Late Jurassic.

Material: Posterior portion of skull, braincase.