Apatosaurus isn’t the only dinosaur to present a short cartoon autobiography. The same series also features a regal Tyrannosaurus , a Baryonyx suffering ennui, and an anxious Beipiaosaurus who ...

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 ...

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 ...