Friday, August 26, 2011

weekly fossil: Jane



Jane is the nickname given to a fossil specimen of small tyrannosaurid dinosaur (Nanotyrannus lancensis or a juvenile Tyrannosaurus rex), officially known as BMRP 2002.4.1, discovered in the Hell Creek Formation in southern Montana.
After four years of preparation, Jane was put on display at Rockford, IllinoisBurpee Museum of Natural History as the centerpiece of an exhibit called "Jane: Diary of a Dinosaur." Paleontologists who support the theory that Jane represents a juvenile believe the tyrannosaur was approximately 11 years old at its time of death, and its fully restored skeleton measured 6.5 metres (21.5 ft) long, about half as long as the largest known complete T. rex specimen, nicknamed "Sue," which measures 13 m (42.6 ft) long. The weight of the Jane specimen in life was probably nearly 680 kg (1,500 lbs). Its large feet and long legs indicate it was built for speed and could possibly run as fast as 20–30 miles per hour. Its lower jaw has 17 curved, serrated teeth.

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