Apatosaurus was an herbivorous sauropod dinosaur that lived from about 155.7 to 150.8 million years ago, during the Kimmeridgian and early Tithonian ages of the Jurassic Period.

Sauropod dinosaurs like Apatosaurus replaced their 'simple teeth' faster than more complex teeth, ... Helen Hunt, 61, reveals she does not diet and refuses to do plastic surgery ...

The dinosaur identified in 1879 as Brontosaurus excelsus and reclassified as Apatosaurus ajax in 1903 is once again back in its own genus, ... ate an herbivorous diet, weighed around 30 to 40 tons.

Department of Geology and Geophysics Apatosaurus. Geologic Age: Late Jurassic, ~145 to 155 million years ago Rock Unit: Morrison Formation Geographic range: Wyoming, Colorado, Utah, Montana, Oklahoma ...

The Apatosaurus, nicknamed "Volcano," is approximately 150 million years old. Its skeleton is composed of between 75% and 80% original bones, with 254 of approximately 319 bones preserved.

Marsh named the first Apatosaurus, or “deceptive lizard,” and the second Brontosaurus, or “noble thunder lizard.” However, in 1903, paleontologist Elmer Riggs contested the idea that the ...

Apatosaurus had a 50-foot-long tail. (National Park Service Illustration / Bob Walters / Tess Kissinger) The dinosaur formerly known as Brontosaurus could certainly do a lot of damage with its ...

A Juvenile Apatosaurus Makes Its Debut Many newly hatched sauropods were so diminutive that they could have stood in the palm of your hand. A new reconstruction goes on display this month ...

GRAND JUNCTION — Rabbit Valley’s Mygatt-Moore quarry is home to hundreds of fossils left behind by dinosaurs and extinct sea creatures. Its most notable recent find was a 6-foot-7-inch ...