Barosaurus lentus

  • Pronounced:  Bare - o - Sore - us

  • Diet:  Herbivore (Plant-Eater)

  • Name Means:  "double beam"

  • Length:  66 feet (20 m)

  • Height:  20 feet (6 m)

  • Weight:  10 tons (9,000 kilos)

  • Time:  Late Jurassic - 155 MYA

Fossil remains for this Dinosaur have been found in Western United States, Africa

Barosaurus was a very long member of the same family of dinosaurs that includes Diplodocus. It was a large, plant-eating, long-necked (sauropod) dinosaur. It was one of the last of the longnecks that lived in North America during the late Jurassic and possibly into the early Cretaceous. They then disappeared in North America until the late part of the Cretaceous when these giant sauropods migrated up from South America.

Known primarily from one partial skeleton described in 1890 (re-described in 1919), and possibly a second species from Africa, Barosaurus is very similar to Diplodocus except for unusually long cervical (neck) vertebrae. The specimen was originally named Gigantosaurus based on its size. Its spectacularly long neck is showcased in a somewhat controversial pose in the rotunda of the American Museum of Natural History. The dinosaur is shown rearing up on its hind legs in a defensive posture with its head more than 30 feet in the air. Some paleontologists have stated that it would have been impossible for this dinosaur to stand like that.

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