Scelidosaurus Reference Libraries

Stegosaurus, meaning “roof lizard,” is a genus of stegosaurid armored dinosaur from the Kimmeridgian to early Tithonian stages of the Late Jurassic Period (145 mya) in what is now western North America. It was first discovered from a bone bed in the Morrison Formation in Morrison, Colorado, and was first described in 1877 by Othniel Charles Marsh. These first fossils became known as the...

Scelidosaurus, meaning “limb lizard,” is a genus of herbivorous dinosaur from the Hettangian and Sinemurian stages of the Early Jurassic Period (208 to 194 million years ago). Its fossils have been discovered in both England and the United States -- in Arizona. Scelidosaurus has been called the earliest complete dinosaur known. The type specimen was discovered by James Harrison of...

Ankylosaurus, meaning "fused lizard", is a genus of dinosaur of the Late Cretaceous Period from western North America. This armored dinosaur is known by only partial discoveries. The only species known is A. magniventris. Ankylosaurus was named by Barnum Brown in 1908. He also led the expedition that discovered the specimen in Hell Creek Formation in 1906. He discovered another specimen in 1910...