Morrison Formation

Othnielia

Othnielia rex was a small ornithopod dinosaur found in the Morrison Formation, a famous geological formation spanning a large chunk of the western United States which is dated to the late Jurassic Period, 155-145 million years ago. It is here… Read More ›

Morrolepis

The Morrison Formation of the western United States is one of the most famous deposits of late Jurassic strata anywhere in the world. It is here that dinosaur fossils from famous species like Allosaurus, Stegosaurus, Apatosaurus, and others were discovered… Read More ›

Harpactognathus

This is Harpactognathus, a rhamphorhynchid pterosaur from the Morrison Formation of the late Jurassic Period. It was one of the largest, if not THE largest, pterosaurs that called the Morrison Formation home. Although it is only known from fragmentary remains,… Read More ›

Coelurus

This is a little-known theropod from the Morrison Formation named Coelurus. You don’t see Coelurus very often in Jurassic paleo-art, but I think it’s an interesting creature. It had a much thinner build than its Morrison coelurosaurid counterpart, Ornitholestes, and… Read More ›

Camarasaurus

Camarasaurus, “the chambered lizard”, was a sauropod dinosaur from the Morrison Formation of western North America, dated to the late Jurassic Period about 155 to 145 million years ago. The animal gets its name from the numerous openings within its… Read More ›