Extinction Of Dinosaurs

Extinction Of Dinosaurs Extinction of Dinosaurs Ryan Humphries Biology 6th Period Two-hundred and xxx million years ago the first dinosaur-like creature roamed the earth. within five million years it could be considered a dinosaur. They were concisely at the top of the food chain. They populated every continent. thus 65 million years ago they vanished. The most compelling creatures ever to live on earth had become extinct. Dinosaurs were not the only victims of this "mass extinction." There were many other species that were killed off.

During what is cognize as the K-T extinction (K stands for Cretaceous, T stands for Tertiary), many species and families became extinct. These include all in all marine reptiles such as plesiosaurs, mosasaurs, ichthyosaurs, and ammonites, swimming and flying reptiles, ocean crocodiles, and foraminifera. In addition to that there were many bony fish, sponges, snails, clams, and sea urchins became extinct. Paleontologi...If you want to get a full essay, order it on our website: Ordercustompaper.com

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