THE JURASSIC PERIOD Essay

This essay has a total of 536 words and 5 pages.

THE JURASSIC PERIOD



The Jurassic Period took place about 210 million years ago. It went on for

about 70 million years. The Jurassic Period was one of periods in the Mesozoic

Era.

The life forms that were present during the Jurassic Period were not all of

the life forms in “Jurassic Park.” The Tyrannosaurus rex and Tricerastops had not

evolved until after the Jurassic Period. During the Jurassic Period the largest land

animals of all were around. These giant animals were known as sauropods. The

Diplodocus, the Brachiosaurus, and the Apatosaurus were all saouropods that were

around during the Jurassic Period. There were also some rodents, no larger than

rats, that roamed in the foliage, and were a number of the early mammals. They

all were herbivorous and ate the lush vegetation that grew in their surroundings.

Other herbivorous were the stegosaurus that had plates on its back that were used

as protection from carnivores. The predators during the Jurassic Period were small

but horrifying carnosaurs, like Allosaurus, and Dilophosaurus. The fast

coelurosaurs were deadly but tiny. They traveled in packs and scavenged. The

Jurassic also had some of the first birds. The Archaeopteryx was supposedly a

coelurosaurian ancestor.

The sea was also full of life. Some of the ocean life consisted of the

ichthyosaurs, plesiosaurs, and crocodiles that were much larger than they are

today. There were also were modern looking sharks and Rays that were the same

size and had similar characteristics. Also there were larger squids, octopus, and
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