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Dinosaurs

It isn't hard to imagine the world full of dinosaurs, even though these extinct animals haven't walked the earth for millions of years. Learn all about dinosaurs, including early dinosaur discoveries, dinosaur fossils, and dinosaur extinction.

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Euskelosaurus

Euskelosaurus was a sauropod of spectacular proportions. It measured about 33 feet in length. Little is known about this dinosaur because the head, hands and feet are unknown. What exactly is known about this giant dinosaur?

Herrerasaurus

The Herrerasaurus was a large dinosaur that weighed about 400 pounds and was about 10 feet long. It survived on a diet of small animals which it most likely caught by ambush and surprise. What else is known about this dinosaur?

Heterodontosaurus

Heterodontosaurus is a small plant eating dinosaur that most likely walked on its hind legs. An unusual feature on this dinosaur is a pair of tusks that probably helped with eating. What else do we know about this tiny dinosaur?

Lesothosaurus

Lesothosaurus was a dinosaur that measured about three and a half feet in length and was build for running. It had hollow bones and hollow spaces in the skull. What was this dinosaur's behavior like?

Lufengosaurus

Lufengosaurus was a sauropod that measured about 20 feet in length and was a close relative of Plateosaurus. There are complete skeletons of this dinosaur, but it has not been fully described. What else is known about this dinosaur?

Massospondylus

Massospondylus was a medium-size prosauropod that lived in what is now modern-day North America and Africa. Its proportions suggest that it probably was able to stand up on its hind legs. What else is known about this dinosaur?

Mussaurus

Mussaurus was a sauropod of modest proportions. This animal is important in that it may help explain the relationship between prosauropods and sauropods. It is thought that the Mussaurus serves as a sort of missing link between the two.

Riojasaurus

Riojasaurus was a quadrupedal dinosaur that could not rear up on its hind legs like some of its relatives. It was a large dinosaur that measured about 33 feet in length. What are some of the other dinosaurs the Riojasaurus is related to?

Scelidosaurus

Scelidosaurus was discovered in the 19th century. At the time, it was one of the most complete dinosaur skeletons ever found. It was a heavily built plant eating dinosaur that grew to around 13 feet in length.

Scutellosaurus

Scutellosaurus was a very unusual dinosaur because it was a two-legged dinosaur that had armor. Most armored dinosaurs walked on all fours. Many scientists believe this dinosaur to be the ancestor of later larger armored dinosaurs.

Sellosaurus

Sellosaurus was a sauropod of modest proportions. It was around 10 feet high and lived during the late Triassic Period. The sellosaurus lived in what is now modern day Germany. What else do we know about this dinosaur?

Syntarus

Syntarus was a small predator that was very fast and agile. Its jaws contained many small, bladelike teeth that were used for slicing the flesh of its prey. The bones of this dinosaur date back to the Early Jurassic Period.

Yunnanosaurus

Yunnanosaurus was a long-necked, four-legged plant-eater that lived in the Early Jurassic Period. The animal was about 18-25 feet in length and lived in what is now China. What do we know about this dinosaur's behavior?

Stegoceras

Stegoceras has been one of the more interesting dinosaurs, partly because of the tangle of names that have been attached to it and also because of explanations that have been attached to its domed skull.

Dinosaur Encyclopedia

It isn't hard to imagine this scene even though dinosaurs haven't walked the earth for millions of years. Dinosaurs have captured our imaginations. These dinosaur articles have been written to lead you into the exciting world of dinosaur research and back to the "Age of Dinosaurs."

Dinosaur Bones

Dinosaur bones are all we have to study what these animals looked like and how they lived. Some of the most important dinosaur bones that paleontologists study come from the skull. Why is the skull so important?

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