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Dinosaurs
by: Connor H., Grade: 4


The word dinosaur means terrible lizard.Dinosaurs lived about 160 million years ago.Dinosaurs first appeared about 220 million years ago.Dinosaurs lived in a time era called the Mesozoic era also called the Age of Dinosaurs.There are three time periods in the Mesozoic era the Triassic Period,the Jurassic Period and the Cretacous Period.The largest dinosaur ever was Brontosaurus.Brontosaurus means thunder lizard because when it walked it sounded like thunder.Stegosaurus means plated lizard.Stegosaurus had plates running down its back.Compsognathus means pretty jaw.Compsognathus was the smallest dinosaur and was the size of a chicken.Triceratops means three horned face.Triceratops was one of the last dinosaurs ever.Anatosaurus means duck billed lizard.Anatosaurus had the most teeth.Coelophysis means hollow form.Coelophysis was one of the first dinosaurs ever.Ankyosaurus means stubbed lizard.Ankyosaurus had a clubed tail.Struthiomimus means ostrich mimic.Strutiomimus was one of the fastest dinosaurs.Tyrannosaurus rex means tyrant lizard king.Tyrannosaurus rex was the largest meat-eating dinosaur.About 65 million years ago a meteor struct the earth and killed the dinosaurs.Today you can see the bones of dinosaurs at museum


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