Extinct Animals

Extinct animals are those species which are no longer living. This group includes prehistoric animals like dinosaurs and ice-age mammals, as well as moden species like the Dodo.

Learn More / Page 7

Anchisaurus was one of the first North American dinosaurs described. The first skeleton was found in 1818 and was originally mistake for human fossils. What did this early dinosaur look like and how did it live?

By the Editors of Publications International, Ltd.

Barapasaurus is named for a word meaning "big leg" in a local dialect in central India. This large dinosaur was a herbivore with large flat teeth that are ideal for cutting or crushing vegetation. What did this dinosaur look like?

By the Editors of Publications International, Ltd.

One of the most unusual predators is that of Coelophysis. It was only slightly larger than a turkey and had a long slender tail and a mouth full of knife-edged teeth. What was this dinosaur's behavior like?

Advertisement

Perhaps no other beast has been more wildly mischaracterized in popular culture than the crested predator Dilophosaurus.

By Mark Mancini

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?

By the Editors of Publications International, Ltd.

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?

By the Editors of Publications International, Ltd.

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?

By the Editors of Publications International, Ltd.

Advertisement

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.

By the Editors of Publications International, Ltd.

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?

By the Editors of Publications International, Ltd.

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.

By the Editors of Publications International, Ltd.

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.

By the Editors of Publications International, Ltd.

Advertisement

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?

By the Editors of Publications International, Ltd.

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.

By the Editors of Publications International, Ltd.

Although it may be long extinct, this quirky bird continues to amaze scientist. The latest discovery? An awesome “musket ball” weapon located on the tip of its wing structure. Could our world once again include this big, old flightless pigeon?

By Jacob Silverman