Reptilia - Dinosauria - Diplodocidae

Alternative combinations: Seismosaurus halli, Seismosaurus hallorum

Full reference: D. D. Gillette. 1991. Seismosaurus halli, gen. et sp. nov., a new sauropod dinosaur from the Morrison Formation (Upper Jurassic/Lower Cretaceous) of New Mexico, USA. Journal of Vertebrate Paleontology 11(4):417-433

Belongs to Diplodocus according to S. G. Lucas et al. 2006

Sister taxa: Diplodocus carnegii, Diplodocus hayi, Diplodocus lacustris, Diplodocus longus

Type specimen: NMMNH P-3690, a set of postcrania. Its type locality is NMMNH locality L-344, which is in a Kimmeridgian/Tithonian channel sandstone in the Morrison Formation of New Mexico.

Ecology: ground dwelling herbivore