Temporal range: Upper Jurassic
|Diplodocus carnegiei skeleton from the Museum für Naturkunde, on temporary display at the Berlin Hauptbahnhof while the museum was renovated in 2007|
Seismosaurus Gillette, 1991
Size[change | edit source]
The Diplodocus was a long-necked, whip-tailed giant and could grow up to 27 m long. It had an 8 m long neck and 14 m long tail. Its weight was approximately 22,680 kg. It had a short 6 ft long head. Its size helped protect it from other dinosaurs. It used its long neck to poke into forests because its body was too big. It is also believed to have knocked the trees down. The longest species is Seismosaurus, which is the longest of all dinosaurs (excluding Amphicoelias).
Fossils[change | edit source]
Diplodocus skeletons are among the longest dinosaur skeletons ever found. Fossils were discovered in Western North America, particularly in the Rocky Mountains of the western USA. A complete tail has never been found.
Seismosaurus[change | edit source]
Seismosaurus is currently the longest animal ever known (excluding Amphicoelias, which is only known from very poor fossils). It was 36-45 metres long with 40 metres being the average length. Weight estimates vary from 50-100 tonnes.
References[change | edit source]
- Lucas S, Herne M, Heckert A, Hunt A, and Sullivan R. Reappraisal of Seismosaurus, A Late Jurassic Sauropod Dinosaur from New Mexico. The Geological Society of America, 2004 Denver Annual Meeting (November 7–10, 2004). Retrieved on 2007-05-24.
- Lucas, S.G., Spielman, J.A., Rinehart, L.A., Heckert, A.B., Herne, M.C., Hunt, A.P., Foster, J.R., and Sullivan, R.M. (2006). "Taxonomic status of Seismosaurus hallorum, a Late Jurassic sauropod dinosaur from New Mexico". In Foster, J.R., and Lucas, S.G.. Paleontology and Geology of the Upper Morrison Formation. New Mexico Museum of Natural History and Science (bulletin 36). pp. 149–161. ISSN 1524-4156.