Top Five Dinosaurs
The Ancients
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The Origins of the Dinosaurs
The heyday of the sauropods was in the middle of the Jurassic period, which ended between about 200 and 150 million years ago. They were found in a huge sequence of rocks called the Morrison Formation - not named after the supermarkets but it's in the American West. Two scientists on the East Coast were interested in them; Othny L. Marsh and Edward Drinker coke. And these two people would commission gangs of workmen to dig up the bones and send them by pack mule, rail, head or whatever back to the East Coast.
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