[1] The holotype specimen, CM 11337 (a virtually complete skeleton minus the skull and tail), was assigned to Camptosaurus medius (Marsh, 1894[2]) by Charles W. Gilmore in 1925.

[3] The rocks it was found in were medium-grained, coarse sandstone that was deposited during the Tithonian and Kimmeridgian stages of the Late Jurassic period, approximately 153 to 148 million years ago.

[9] Studies suggest that the paleoenvironment of this section of the Morrison Formation included rivers that flowed from the west into a basin that contained a giant, saline alkaline lake and there were extensive wetlands in the vicinity.

[10] The Dry Mesa Quarry has produced the remains of the sauropods Apatosaurus, Diplodocus, Barosaurus, Supersaurus, and Camarasaurus, the ornithopods Camptosaurus and Dryosaurus, and the theropods Allosaurus, Torvosaurus.

Animal fossils discovered include bivalves, snails, ray-finned fishes, frogs, salamanders, amphibians, turtles, sphenodonts, lizards, terrestrial (like Hoplosuchus) and aquatic crocodylomorphs, cotylosaurs, several species of pterosaurs like Harpactognathus, and early mammals, multituberculates, symmetrodonts, and triconodonts.