Place

Barosaurus lentus

A long necked dinosaur with a very long whip-like tail.
Adult Barosaurus grew up to lengths over 85 feet and weighed over 20 tons.

NPS Photo/Bob Walters Tess Kissinger

Quick Facts

Historical/Interpretive Information/Exhibits

Barosaurus is a plant eater and the least common of all the sauropods (long-necked dinosaurs) found in the Carnegie Quarry. It is similar to Diplodocus, but has a longer neck and shorter tail. The forelimbs of Barosaurus are longer and more slender than those of the Diplodocus. Unfortunately, no one has ever found a Barosaurus skull so those on display are based on the skulls of other sauropods.

The most complete real Barosaurus skeleton on display is at the Royal Ontario Museum in Toronto, Ontario, Canada. It was also found in the Carnegie Quarry and acquired as part of a trade between museums. One of the boxes contained a surprise: an eight inch square imprint of Barosaurus skin attached to a limb bone! Dinosaur skin imprints are extremely rare but helpful in determining how dinosaurs might have looked. You can see the original skin imprint with the skeleton on display at the Royal Ontario Museum.

Dinosaur National Monument

Last updated: January 11, 2024