a plant-eating diplodocine sauropod dinosaur from the late Jurassic of North America.
This entry is being updated but should be back online before the next extinction.
is derived from the Greek "diploos" (double) and "dokos" (beam), in reference to the double-beamed bones (chevrons) on the underside of its tail. This feature was once thought to be unique to Diplodocus
but has since been discovered in other sauropods.
The species epithet
, means "long, extended" in Latin.
The remains of Diplodocus
were discovered at Felch Quarry 1 in the Brushy Basin Member of the Morrison Formation, Fremont County, Colorado, by Benjamin Mudge and Samuel Wendell Williston in 1877.
(YPM 1920) is a partial, skulless skeleton.
: Late Jurassic
: 156-151 mya
Est. max. length
: 25 meters
Est. max. hip height
Est. max. weight
: 21 tons
(NMMNH P-3690) is based on remains from what is now known as "Seismosaurus Quarry I" (NMMNH locality L-344 ) in the Brushy Basin Member of the Morrison Formation, Sandoval County, New Mexico, which was named Seismosaurus halli
by Gillette in 1991. When this species was officially moved to Diplodocus
in 2006 it took the largest touchable* diplodocid remains with it (*see Amphicoelias
It may simply be a super-large specimen of Diplodocus longus
(HMS 175) is known from a partial skeleton discovered by William H. Utterback in at Red Fork Powder River Quarry A in the Morrison Formation, near Sheridan, Johnson County, Wyoming,
(CM 84) was found at Carnegie Quarry D (Sheep Creek) in the Upper Morrison Formation of Cañon City, Colorado, by Jacob Wortman. This is the best known specimen of Diplodocus
because, well, it's the best known specimen of Diplodocus
(YPM 1922) is based on a lower jawbone found at Lakes Quarry 5 (aka Beckwith Quarry, Dinosaur Ridge) in the Brushy Basin Member of the Morrison Formation, Jefferson County, Colorado. It may simply be a juvenile version of Diplodocus longus
rather than a standalone species.
• Marsh, O.C. (1884) "Principal characters of American Jurassic dinosaurs. Part VII. On the Diplodocidae, a new family of the Sauropoda. Part I
". American Journal of Science 3: 411–416.
• J.B. Hatcher (1901) "Diplodocus Marsh, Its Osteology, Taxonomy, and Probable Habits, with a Restoration of the Skeleton
• Upchurch P, Barrett PM, Dodson P (2004) "Sauropoda" in Weishampel, Dodson and Osmólska (eds.) "The Dinosauria: Second Edition
• McIntosh, John S. (2005) "The Genus Barosaurus
Marsh" in Carpenter and Tidswell (eds.) "Thunder Lizards: The Sauropodomorph Dinosaurs
• Lucas S, Herne M, Heckert A, Hunt A, and Sullivan R. (2004) "Reappraisal of Seismosaurus
, A Late Jurassic Sauropod Dinosaur from New Mexico".
• Whitlock, John A.; Wilson, Jeffrey A. & Lamanna, Matthew C. (March 2010) "Description of a Nearly Complete Juvenile Skull of Diplodocus
(Sauropoda: Diplodocoidea) from the Late Jurassic of North America".
• Gillette D.G and Hallett M. (1999) "Seismosaurus: the earth shaker
" / uk
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