Genus: Smitanosaurus WHITLOCK, WILSON MANTILLA, 2020
Etymology: Old Saxon, smitan, "smith" and Greek, sauros, "reptile." Smith's reptile references both J. August Smith, who carefully excavated and sketched the holotype and the Smithsonian Institution, its permanent repository.

Species: agilis (MARSH, 1889) WHITLOCK, WILSON MANTILLA, 2020
Etymology: Latin, agilis, "agile, nimble."
= Morosaurus agilis MARSH, 1889 (nomen dubium)
= Camarasaurus agilis (MARSH, 1889) KUHN, 1939 (nomen dubium)

Holotype: USNM 5384

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: Upper posterior section of skull, atlas, axis and first three cervicals.

After WHITLOCK, WILSON MANTILLA, 2020.

Referred material:

 


WHITE, 1958

Locality: Bone Cabin Quarry, 8 miles north of Como, Medicine Bow Anticline (also called Flat top Anticline), Albany County, Wyoming.

Horizon: Salt Wash Member, Morrison Formation.

Biostratigraphy: Zone 2.

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

Material:

AMNH 545: Occiput, frontal region and braincase.