Extinction Of Dinosaurs

Extinction Of Dinosaurs Extinction of Dinosaurs Ryan Humphries Biology 6th Period Two-hundred and thirty million years ago the first dinosaur-like creature roamed the earth. inside five million years it could be considered a dinosaur. They were shortly at the top of the food chain. They populated every continent. then 65 million years ago they vanished. The most make creatures ever to live on earth had become extinct. Dinosaurs were non the only victims of this "mass extinction." There were legion(predicate) other species that were killed off.

During what is bed as the K-T extinction (K stands for Cretaceous, T stands for Tertiary), many species and families became extinct. These include on the whole in all marine reptiles such as plesiosaurs, mosasaurs, ichthyosaurs, and ammonites, limpid 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 bountiful essay, order it on our website: OrderCustomPaper.com

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