ENGELMANN & CALLISON, 1998

Locality: Quarry face as exposed inside the Dinosaur National Monument Visitor Center, Carnegie Quarry, Vernal, Uintah County, Utah.

Horizon: Brushy Basin Member, Morrison Formation.

Biostratigraphy: Zone 3.

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

Material:

DINO 10721: Right lower molar.

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PROTHERO, 1981

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:

AMNH 101135: Mandible fragment with 4 worn premolars.

AMNH 101143: Left lower molar.

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SIMPSON, 1928

Locality: Durdlestone Bay, Swanage, Dorset County, England, Southern United Kingdom.

Horizon: Purbeckian.

Biostratigraphy:

Age: Tithonian Stage, Upper Malm Epoch, Late Jurassic.

Material:

BMNH 47800: Part of the right ramus, external aspect, with the teeth broken off at the roots and apparently naturally associated fragment of right upper jaw with four molars, badly worn and broken.

BMNH 48389: Right ramus, internal aspect, with LP4 and LM1-6.