NOTE: The original article concerning Torvosaurus was published on August 8, 2015. It was completely overhauled and re-published on December 9, 2020, with more information and new artwork. Introduction The Morrison Formation of western North America, dated to the late… Read More ›
Morrison Formation
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 ›
AMNH Allosaurus photos
Recently, I have decided that my Allosaurus color drawing, which I have re-tooled about four or five times and felt so proud of, actually needs to be re-tooled again. I had made that drawing the center focus of one of… Read More ›
Ceratosaurus
Ceratosaurus nasicornis was a 20-foot theropod dinosaur which lived in western North America during the late Jurassic Period, about 155-145 million years ago. It is one of the more famous Jurassic meat-eating dinosaurs, along with Allosaurus and Ornitholestes. It is the… Read More ›
The Changing Face of Camptosaurus
Camptosaurus dispar was a type of ornithopod ornithischian dinosaur which lived in western North America during the late Jurassic Period. It measured 20 feet long and possibly weighed a ton. Camptosaurus was the largest ornithopod found within the Morrison Formation…. Read More ›
Allosaurus
Allosaurus fragilis is one of the most famous and easily-recognized dinosaurs. Practically every museum has at least one specimen, either on display or in collections, and absolutely every basic-level children’s book about dinosaurs mentions Allosaurus, usually accompanied with a picture…. Read More ›
Dermodactylus
NOTE: This article was original published on July 3, 2013. It was afterwards heavily updated and republished on December 28, 2025. If you want to find dinosaur bones, one of the best places to look for them is the Morrison… Read More ›