in 1909. The type specimen was incomplete, consisting of 5 anterior cervical vertebrae, and is a synonym of Camarasaurus lentus. Additional Camarasaurus material was found at near Black Mesa in western Oklahoma during the 1940s and has been referred to Camarasaurus supremus, the material consists of many large vertebrae and some skull elements. Resurgent discoveries No major discoveries would come for Camarasaurus until in 1967, James Jensen collected a well preserved and articulated partial postcranial skeleton, including majority of the vertebral column, at Uncompahgre Hill in western Colorado and was deposited at Brigham Young University under specimen number BYU 9740. The skeleton wasn't full prepared until years later, and was described in 1988 as a new genus and species of Camarasaurid, Cathetosaurus lewisi. C. lewisi's original description was brief, but later in 1996 the skeleton was given a full osteology and placed as a species of Camarasaurus by John McIntosh and colleagues. In their paper, they determined that C. supremus, C. grandis, C. lentus, and C. lewisi were valid. In 2013, Octavio Mateus and Emanuel Tschopp argued that C. lewisi was actually its own genus based on a specimen found at Howe Quarry in 1992 that they referred to the species. Further research by Tschopp concluded that the Howe Quarry specimen was most likely to represent Camarasaurus after all. As of 2019, most researchers considered C. lewisi to be a species of Camarasaurus. In 1992, another substantial and articulated skeleton of Camarasaurus was collected, this skeleton by Jeffrie Parker and colleagues near the AMNH's Bone Cabin Quarry at Como Bluff. This skeleton was referred to Camarasaurus grandis and is one of the most complete specimens assigned to the species, it now resides at the Gunma Museum of Natural History in Tokyo under specimen number GMNH-PV 101. 1992 saw yet another Camarasaurus skeleton discovery further north at Howe Quarry, Wyoming by crews working for the Sauriermuseum Aathal in Switzerland. The skeleton is one of the best known, with nearly every element articulated and skin impressions from the skull and hindlimb. The specimen, SMA 002, has not yet gotten a full identification, but has been suggested to be a specimen of C. lewisi. In 1996, several fragmentary remains of Camarasaurus were described from western South Dakota and New Mexico, extending the northeastern and southern range of the genus, with the New Mexican remains from the Summerville Formation. The northernmost specimen of Camarasaurus