The "Diplodocus", Torosaurus, "Tyrannosaurus Rex", and "Triceratops" all had motorized walking mechanisms. "Allosaurus" is commonly found at the same sites as "Apatosaurus", "Camarasaurus", "Diplodocus", and "Stegosaurus". "Apatosaurus" is commonly found at the same sites as "Allosaurus", "Camarasaurus", "Diplodocus", and "Stegosaurus". These remains were split between several species, including stegosaurus, camptosaurus, diplodocus, and edmontosaurus. The two Morrison Formation sauropod genera "Diplodocus" and "Barosaurus" had very similar limb bones. Sauropods dominated the region, and included" Brachiosaurus", "Apatosaurus", "Diplodocus", "Camarasaurus", and "Barosaurus". Among these were "Apatosaurus", "Barosaurus", "Camarasaurus", "Diplodocus", "Haplocanthosaurus", and "Supersaurus". His alias, short for "Diplodocus", derives from his childhood fascination with dinosaurs. The spines have been incorporated into many recent reconstructions of "Diplodocus", notably "Walking with Dinosaurs". Three years pass, and a herd of "Diplodocus" are migrating across the prehistoric salt lake. A similar value has recently been proposed for the related "Diplodocus". The skull was designated CM 11162, and was very similar to the skull of "Diplodocus". Several species of "Diplodocus" were described between 1878 and 1924. Macronaria is defined as all neosauropods more closely related to "Saltasaurus loricatus" than "Diplodocus longus". The skull was designated CM11162; it was very similar to the skull of "Diplodocus".