= Diplodocus longus MARSH, 1878 (referred material)

Locality: Marsh-Felch’s YPM Quarry 1, Garden Park, Sec. 28, T17S, R70W, Canyon City, Fremont County, Colorado.

Horizon: Salt Wash Member, Morrison Formation.

Biostratigraphy: Zone 2.

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

Material:

YPM 4689: Sacrum and ilia.

YPM 59136: Ischia, femur, tibia, fibula.

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= Brontosaurus sp MERRILL, 1907 (Transfered to Apatosaurinae indeterminate by TSCHOPP, BRINKMAN, HENDERSON, TURNER & MATEUS, 2018)

Locality: Canon City, Colorado.

Horizon: Member? Morrison Formation.

Biostratigraphy: Zone?

Age: Age?, Stage?, Malm Epoch, Late Jurassic.

Material:

USNM 4712: Cervical vertebra.

USNM 5368: Atlas.

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= Brontosaurus sp OSBORN, 1899/OSBORN & GRANGER, 1901

Locality: Along the wagon road at the Ninemile Crossing of the Little Medicine Bow River, Como Bluff, Southern Wyoming.

Biostratigraphy:

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

Material:

AMNH 460: Cervical and dorsal vertebrae, ribs, pelvis, left femur, other limb bones.
Note: Paleopathology, early stages of caudal 18 fused, ROTHCHILD & BERMAN, 1991.