BREITHUPT, 1982

Locality: East flank of Rock Springs Uplift, Sweetwater County, Wyoming.

Horizon: Lance Formation.

Biostratigraphy:

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

Material:

UW 14273: Right ilium fragment.

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BREITHAUPT, 1985

Locality: Wyoming.

Horizon: "Mesaverde" Formation.

Biostratigraphy:

Age: Late Cretaceous.

Material:

Number: Not given:

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BREITHAUPT, 2001

Locality: Hoodoo Point, SDSM V9717, Thunder Basin National Grassland, Northeastern Wyoming.

Horizon: Lance Formation.

Biostratigraphy:

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

Material:

Number: Not given: 3 specimens.

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HENRICI, 1997

Locality: Rainbow Park Microsite, Dinosaur National Monument, Jensen, Unitah County, Utah.

Horizon: Upper or Brushy Basin member, Morrison Formation.

Biostratigraphy: Zone 3.

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

Material:

Number: Not given: Severial incomplete humeri
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HOLMAN, 2003

Locality: El Rosario, Baja California del Norte, Baja California State, Mexico.

Horizon: “EL Gallo Formation”, Middle one-third of the Upper Campanian.

Biostratigraphy:

Age: Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

Numbers: Not given: Skull elements and postcranial remains.
Note: ESTES & SANCHIZ, 1982.