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Temporal range: Upper Jurassic 153 mya
Supersaurus dinosaur.png
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Sauropsida
Superorder: Dinosauria
Order: Saurischia
Suborder: Sauropodomorpha
Infraorder: Sauropoda
Family: Diplodocidae
Subfamily: Apatosaurinae
Genus: Supersaurus
Binomial name
Supersaurus vivianae

Supersaurus was a sauropod dinosaur, a relative of Diplodocus. It was found in the Upper Jurassic Morrison Formation of Colorado in 1972.[1]

In most respects, Supersaurus is similar in to Apatosaurus, but it is less robustly built. It has elongated cervical vertebrae, resulting in one of the longest known sauropod necks.[2] It was up to 33 to 34 meters (108 to 112 ft) in length, and a weight of 35 to 40 tons.[3]

A new and much more complete specimen of Supersaurus, nicknamed 'Jimbo', WDC DMJ-021, was found in Converse County, Wyoming in 1996. It is currently being prepared and was described in 2007. Its bones are held at the Wyoming Dinosaur Center.

References[change | change source]

  1. Foster J. 2007. Appendix, in Jurassic West: the dinosaurs of the Morrison Formation and their world. Indiana University Press, 327-329.
  2. Amphicoelias was longer.
  3. Lovelace, David M; Hartman, Scott A. & Wahl, William R. 2007. Morphology of a specimen of Supersaurus (Dinosauria, Sauropoda) from the Morrison Formation of Wyoming, and a re-evaluation of diplodocid phylogeny. Arquivos do Museu Nacional 65 (4): 527–544.