of 2022, the holotype of C. lewisi was one of only nine described sauropod specimens to preserve all of the cervical vertebrae, though not all the vertebrae are well-preserved. An unpublished study by Octávio Mateus and Emanuel Tschopp referred a second specimen, SMA 0002, to the species, but subsequent study has regarded the specimen as belonging to an indeterminate species of Camarasaurus. The precise affinities of SMA 0002 remain uncertain; it is the geologically oldest Camarasaurus specimen and, despite representing a mature individual, is much smaller than most adult Camarasaurus specimens and may represent a distinct small species. Another unpublished study by Tschopp, Mateus, and colleagues found a third specimen, GMNH-PV 101, to form a clade with SMA 0002 and the C. lewisi holotype. GMNH-PV 101 had originally been described as a specimen of Camarasaurus grandis. Footnotes References Macronarians Fossil taxa described in 1988 Taxa named by James A. Jensen