Dinosaurs By Miss Topley. The first dinosaurs appeared about 230 million years ago and for the next 160 million years the Earth belonged to these ancient.

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Presentation transcript:

Dinosaurs By Miss Topley

The first dinosaurs appeared about 230 million years ago and for the next 160 million years the Earth belonged to these ancient reptiles. Dinosaurs survived for more than 700,000 years after the earth was hit by a massive meteorite originally believed to have caused their extinction, according to new research.

How many species of dinosaurs have been found in Britain? So far 108 species of dinosaurs have been discovered in Britain. Britain was an important area during much of the Mesozoic Era acting as a 'land bridge' between North America and Eurasia. It became a hotspot for dinosaur evolution and migration. British dinosaurs include Megalosaurus, Iguanodon, Neovenator, Eotyrannus, and Cetiosaurus.

Dinosaurs The tallest dinosaurs were the Brachiosaurid group of sauropods. Their front legs were longer than the rear legs giving them a giraffe-like stance. This combined with their extremely long necks, which were held vertically, meant they could browse off the tallest trees. Brachiosaurus - the most well known of the group - was 13 metres tall. Sauroposeidon was massive and probably grew to 18.5 metres tall making it the tallest dinosaur.