Brachiosaurus altithorax T-Shirt

Discovered in 1903 by paleontologist Elmer S. Riggs in the Colorado River Valley, Brachiosaurus (it’s name meaning “Arm Lizard” because of it’s proportionately longer front limbs) roamed what would become North America during the Late Jurassic about 154 to 153 million years ago. With a length in the upper estimates of 69 feet and a possible 64 tons in weight it was a large animal, though it was not by far the largest the clade of sauropods would get.