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Meet Stan the T. rex

Meet Stan the T. rex

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You’ve seen the dinos in Dinosphere– but have you ever taken the time to really get to know them? Well now’s your chance! In the Meet the Dinos blog series, you learn the behind the scenes story on all of your favorite dinosaurs, from their lives in the cretaceous period to their discoveries!

Who is Stan?

Stan is a Tyrannosaurus rex (T. rex) which means "tyrant lizard king." Unlike Bucky the Teenage T. rex, Stan is an adult T. rexDinosphere's Stan is a cast of the original Stan in the collection of the Black Hills Institute.

Stan has probably the best preserved and most complete dinosaur skull ever discovered. Nearly every fossilized bone of Stan's skull was discovered during excavation. The fossilized bones in Stan's skull were found separated from each other. This is important because it allowed the bones to be preserved for millions of years in excellent condition with little distortion or crushing. It also gave scientists the opportunity to study each fossilized bone and determine how the bones connected and moved in relation to each other.
Forty-seven separate fossilized bones and 35 loose fossilized teeth were assembled in the reconstruction of Stan's skull. The only missing bones were two small skull pieces from Stan's lower jaw. Stan had several broken and healed ribs, a broken neck and a hole in the back of its skull. The study of Stan's skull led scientists to believe T. rex had the largest brain, the best eyesight, the best sense of smell, the strongest teeth and the most powerful jaw of all the dinosaurs in the Late Cretaceous Period at the end of the Age of Dinosaurs.

In 1987, amateur paleontologist Stan Sacrison was exploring in the Hell Creek Formation near the town of Buffalo, South Dakota, when he discovered a large fossilized bone sticking out of a sandy cliff face 100 feet above the prairie. He had discovered the T. rex later to be named after him, Stan.

The Life of a T. rex
Stan lived in the Late Cretaceous Period, around 65 million years ago. Tyrannosaurs like Stan could be found in parts of western North America.

T. rex was a carnivore, which means it ate meat instead of plants. Its teeth and strength came in handy when it ate. It had more than 50 teeth, the largest of which were up to 7 inches long and sharp like saw-edged steak knives. Its upper teeth were curved and very sharp like butcher's knives. T. rex didn't eat tiny, polite bites. Its teeth and strong jaw muscles enabled it to tear off and eat large chunks of meat from its prey.
From studying the way T. rex teeth were worn down, scientists believe that it likely ate tough, fresh meat instead of rotting meat from animals already dead. This means that T. rex was a predator rather than a scavenger. As a tyrannosaur's teeth got old, the long roots of the teeth dissolved so they could fall out and be replaced by new teeth.

Want to learn more? Be sure to meet all of the dinos in Dinosphere!

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Categories: Dino Digs, Exhibits
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