By sharing this link, I acknowledge that I have read and understand the Terms and Conditions.
55.2 MB (10.5 MB compressed)
3585 x 5378 pixels
30.2 x 45.5 cm ⏐ 11.9 x 17.9 in (300dpi)
JIM WEST / SCIENCE PHOTO LIBRARY JIM WEST / SCIENCE PHOTO LIBRARY
Allosaurus dinosaur leg bone fossils. Excavated fossils of an Allosaurus femur (thigh bone) and tibia (shin bone). These specimens have been uncovered at the Cleveland-Lloyd Dinosaur Quarry, Cleveland, Utah, USA. More than 12,000 Jurassic-era dinosaur bone fossils have been found at this site, which is part of a geological formation called the San Rafael Swell. The first major excavations at this site took place in the 1920s. It was designated a US National Natural Landmark in 1965. Dinosaur fossils found here include the carnivorous Allosaurus, trapped in a sticky mud deposit, a form of predator trap. Photographed in July 2015.
Model release not required. Property release not required.