Isisaurus

Isisaurus had a short, upright neck and long front legs, which was very unusual for a sauropod.1

Its upper arm bone, the humerus, was 148 centimeters (about 4.9 feet) long.1

Scientists found fungus in coprolites (fossil poop) that they think came from Isisaurus. The fungus shows that it ate leaves from trees that were sick with disease.1

Isisaurus is known from many bones, including neck, back, and tail vertebrae, ribs, pelvis, shoulder bones, and a left front leg. No skull or foot bones have been found.1

It lived during the very end of the Cretaceous Period, about 70 to 66 million years ago, alongside meat-eating dinosaurs like Rajasaurus.14

The angle between the back of the skull and the neck joint in Isisaurus was 120 degrees, similar to the skulls of Diplodocus and Apatosaurus.1