Middle and Late Jurassic Dinosaurs

Fossils of just 12 individual Archaeopteryx, a winged dinosaur that live during the Jurassic, have ever been found. Aside from the rarity, what else makes this unique dinosaur so special?

By Mark Mancini

Stegosaurus, an herbivorous dinosaur from 149 million years ago, walked on four legs, had a long, beak-tipped skull, a row of spikes adorning its tail and a pea-sized brain.

By Mark Mancini

A full grown Allosaurus could be up to 34 feet long, stand 9 feet tall and weigh around 3 tons. This dino was a monster who, scientists suspect, would even eat his own kind.

By Mark Mancini

Apatosaurus was a huge sauropod from the Jurassic period. And there's a debate that's been raging for decades about whether its genus should cancel out the Brontosaurus entirely.

By Mark Mancini

Brachiosaurus has been portrayed in popular culture many times, but the representations of this mysterious dinosaur are largely based on another massive dino called Giraffatitan brancai.

By Mark Mancini

Diplodocus was an incredibly large dinosaur. It is the longest dinosaur known from complete skeletons. A fully grown adult could reach a length of 90 feet. Skeletons of this massive dinosaur have been found in North America.

By the Editors of Publications International, Ltd.

Huayangosaurus was a type of stegosaur that lived in the Middle Jurassic in what is now China. The most prominent feature on this dinosaur is the rows of bony plating that ran down its back.

By the Editors of Publications International, Ltd.

Supersaurus was a dinosaur that truly deserved its name. It measured about 100 feet in length and lived in North America. This dinosaur lived on a diet that consisted mostly of chutes and leaves from the tops of trees.

By the Editors of Publications International, Ltd.

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

By Mark Mancini