Diplodocus longus


Diplodocus the longest dinosaur at the quarry from head to tail, over 80 feet long

Diplodocus is Greek for “double-beam”, in reference to its tail vertebrae each having a pair of processes called chevrons

Diploducus had a whip-like tail  was composed of over 80 vertebrae


The dinosaur Diplodocus roam through a jurassic floodplain

A group of Diplodocus walk through the Morrison Ecosystem.

Diplodocus longus is a species of sauropod dinosaur from the Late Jurassic of North America. Found in the Morrison Formation, its bones are featured in the Carnegie Quarry at Dinosaur National Monument. Juvenile and adult specimens have been excavated from Carnegie Quarry. A Diplodocus skull found during excavations is the most complete and three-dimensionally preserved sauropod skull known. Skeletons of Diplodocus from Carnegie Quarry have been mounted in the Smithsonian Museum and the Denver Museum of Nature and Science. Diplodocus grew to be over 80 feet long, however, it was built much lighter than its contemporary Apatosaurus.

Specimens of Diplodocus longus from the Carnegie Quarry:

Photos to be added as they come avalable

DINO_5067 Diplodocus Left Metatarsal
DINO_5067 Diplodocus Left Metatarsal

Gilmore, C.W. 1932. On a newly mounted skeleton of Diplodocus in the United States National Museum. Proceedings of the United States National Museum (article 18): 21pp.

Haas, G. 1963. A proposed reconstruction of the jaw musculature of Diplodocus. Annals of the Carnegie Museum 36: 139-157.

Holland, J.W. 1924a. The skull of Diplodocus. Memoirs of the Carnegie Museum IX: 379-403.

McIntosh, J.S. and Berman, D.S. 1975. Description of the palate and lower jaw of Diplodocus (Reptilia: Saurischia) with remarks on the nature of the skull of Apatosaurus. Journal of Paleontology 49(1): 187-199. Link to publication

Yu, C. 1993. Reconstruction of the Skull of Diplodocus and the Phylogeny of the Diplodocidae. Ph.D. Dissertation, University of Chicago: 143pp.


Information to be added as it becomes available

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