Evolution & life

Henry Fairfield Osborn names Tyrannosaurus rex

1905

In 1905 Henry Fairfield Osborn, president of the American Museum of Natural History in New York, described and named Tyrannosaurus rex, 'tyrant lizard king', from partial skeletons that the fossil hunter Barnum Brown had excavated in the Hell Creek Formation of Montana in 1902 and 1908. Standing about 4 metres tall at the hips and over 12 metres long, with 30-centimetre teeth, it was the largest meat-eating dinosaur then known. Its skeleton went on display in 1915. Tyrannosaurus lived about 68 to 66 million years ago, at the very end of the age of dinosaurs, and became the best-known dinosaur in the popular imagination.

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