CALLLSON, 1987, FOSTER, 2003

Locality: Fruita Paleontological Area, locality 4684, Mesa County, Colorado.

Horizon: Brushy Basin Member, Morrison Formation.

Biostratigraphy: Zone 4.

Age: Upper Part, Comobluffian age, Tithonian Stage, Uppermost Malm Epoch, Late Jurassic.

Material:

Number: Not given:

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NASH

Locality: Uinta Basin, near Vernal, Uinta County, Utah.

Horizon: Member? Morrison Formation.

Biostratigraphy:

Age: Stage? Epoch? Late Jurassic.

Material:

Number: Not given: 2 partial mandibles, including part of the symphysis, articulated with an incomplete skull.