The Middle and Late Jurassic Periods were a time in which the dinosaurs took over the world. Learn more about the Middle and Late Jurassic dinosaurs, including the Yangchuanosaurus, Megalosaurus, and Archaepteryx.
No dinosaur has been the subject of as much controversy as Stegosaurus, the armored dinosaur of the Late Jurassic. For more than a hundred years, this strange plant-eater has baffled paleontologists and captured the imagination of the public.
Allosaurus was the most powerful, fearsome is and deadly dinosaur of the Late Jurassic. Until the Tyrannosaurus appeared this dinosaur was the largest predator to roam the Earth.
Apatosaurus is perhaps one of the most famous dinosaurs because of the size of the animal. A fully grown Apatosaurus could reach up to 70 feet in length. The size of this dinosaur is what earned it the nickname "thunder lizard."
Archaepteryx was a very unique dinosaur in that it resembled a bird. It is known from only six fossils, but those fossils may be the most famous bones in the world. The Archaepteryx is the dinosaur that resembles modern birds the most.
The Brachiosaurus is a unique dinosaur because of the placement of the nostril openings, which were slightly above the eyes. Its front legs were longer than the rear, which made it able to eat the leaves from high tree branches.
One of the most common sauropods of the Late Jurassic was the Camarasaurus. It was a large, 25-ton plant-eater was strong and massive, with powerful legs and a strong neck and tail.
Camptosaurus was one of the smallest plant-eating dinosaurs of the Late Jurassic. It weighed no more than 1,000 pounds and stood just five feet tall at the hips. Its strong legs were designed to help it avoid any predators.
Ceratosaurus was perhaps the greatest rival of the Allosaurus. It had a huge head with powerful jaws is and a massive body. It also had powerful legs which allowed it to run at high speeds.
The Compsognathus was one of the smallest known dinosaurs, which is amazing considering that it was a meat-eating dinosaur. This animal was about the size of a turkey and lived mostly near water. What else do we know about this dinosaur?
Dacentrurus was an armored dinosaur that was related to the Stegosaurus. The most prominent feature on this dinosaur was the set of large spikes on the end of the tail. It also had plates of bones on its back just like the Stegosaurus.
Datousaurus may have been an animal that traveled by itself and ate the leaves of the tallest plants in its environment. It lived in the Middle Jurassic Period in what is now modern day China.
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.
Dryosaurus is the most important member of the family Dryosauridae. This is a group of small plant-eating dinosaurs from the Late Jurassic and Early Cretaceous of North America, eastern Africa is and Europe.
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.
Kentrosaurus stands out among its relative stegosaurs because this dinosaur had an extra set of spines that stuck out above its hips. It had short front legs and neck which means it could only eat low shrubs and plants.
Megalosaurus was the first dinosaur that was described as a reptile. This dinosaur is often described as being part of the "waste bucket" genus because so many bones from other dinosaurs have been mistaken for being that of the Megalosaurus!
Omeisaurus is considered the most common of the Late Jurassic Chinese sauropods. The most prominent characteristic of this dinosaur is the extremely long neck the was uncommon for most North American dinosaurs.
Othnielia is a smaller dinosaur that wasn't named until recently. It probably survived on a diet of plants and small insects. The limbs also suggest that this dinosaur would have been a good runner.
Seismosaurus was an incredibly large dinosaur that measured nearly half the length of a football field. It had a very long neck, short front legs and and a long heavy tail.
Shunosaurus was the dominant plant-eater of Middle Jurassic China. It could feed on plants and leaves high above the ground that most other herbivores could not reach.
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.
The slow-moving, peaceful life of Tuojiangosaurus was sometimes interrupted by battles with predators such as Yangchuanosaurus and Szechuanosaurus. It would also battle with another male Tuojiangosaurus for females.
The Middle and Late Jurassic Periods were a time in which the dinosaurs took over the world. This is also the time period when Pangea broke apart, which separated many species of dinosaurs.
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