"Diplodocus", modified from elements in Hatcher (1901, plate 3), represents a “typical” long-necked sauropod, familiar from many mounted skeletons in museums. "Puertasaurus", "Sauroposeidon", "Mamenchisaurus" and "Supersaurus" modified from Scott Hartman’s reconstructions of "Futalognkosaurus", "Cedarosaurus", "Mamenchisaurus" and "Supersaurus" respectively. Alternating pink and blue bars are one meter in width.