Bucky had a strong sense of smell, powerful legs that may have allowed it to move quickly, and forward-looking eyes which allowed it to quickly spot and focus on prey — characteristics that made it a ferocious hunter.
Bucky's lower jaw hinged like a door at the midpoint between its jawbone and chin so it could open its mouth wider to take bigger bites. Scientists think the T. rex moved its lower jaw backwards so its sharp lower teeth could tear through what it was eating while its upper teeth held the food in place.
Fully grown tyrannosaurs were relatively lightweight for their size (around 6 tons — about as heavy as 3 cars) because their bones were hollow and they had large openings in their skulls.
Interesting Things About Bucky
Bucky is the sixth most complete T. rex ever found and the first teenage T. rex put on permanent display in a museum.
Bucky is the first T. rex to be identified with a furcula. This is very important because modern-day birds have wishbones. Does this mean that dinosaurs are distant relatives of birds?
Bucky also has a nearly complete set of gastralia and is only the third T. rex to be discovered with an ulna.
Bucky was discovered at a ranch near the small town of Faith, South Dakota. The ranch is a part of a land formation which extends from parts of the northwestern United States into southwestern Canada. This area is called Hell Creek Formation. Other tyrannosaur fossils have been found in this formation.
A young rancher and rodeo cowboy named Bucky Derflinger discovered Bucky in 1998. That's how Bucky the T. rex got its name. Bucky Derflinger has been collecting dinosaur fossils since he was 9 years old. He was 20 when he saw Bucky's fossilized toe bone sticking out of the ground. The part of the fossilized bone he saw was white because it was weathered and had been bleached by the sun. Bucky Derflinger is the youngest person ever to have discovered a T. rex. You don't have to be a professional paleontologist to be a dinosaur hunter!
Most of Bucky's fossilized bones were scattered and difficult to find. The dig site for its bones was about half the size of a football field — the largest dig site ever for a T. rex.
Bucky was extremely well preserved and easy to prepare for display in the museum because the rock surrounding its fossilized bones, called the matrix, was soft and easy to remove.
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