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Other tyrannosaurid fossils found in the same formations as T. rex were originally classified as separate taxa, including Aublysodon and Albertosaurus megagracilis, [62] the latter being named Dinotyrannus megagracilis in 1995. [93] These fossils are now universally considered to belong to juvenile T. rex. [94]
Montana's T. rex (also known as "Peck's rex", "Peckrex", "Rigby's rex" and Tyrannosaurus "imperator") is the nickname given to a fossil specimen found in Montana in 1997. [54] The discovery was made by Louis E. Tremblay on 4 July 1997 working under the supervision of J. Keith Rigby Jr. who led the excavation and bone preparation.
Previously discovered T. rex skeletons were usually missing over half of their bones. [10] It was later determined that Sue was a record 90 percent complete by bulk, [11] and 73 percent complete counting the elements. [12] Of the 360 known T. rex bones, around 250 have been recovered. [1]
On August 12, 1990, Susan Hendrickson -- a fossil hunter -- discovered three huge bones protruding out of a cliff near Faith, South Dakota. Those burned turned out to be part of the largest ever T ...
"They don't believe me that I found a T. rex." ... “I had found buffalo and cow bones in the past and knew these were definitely bigger,” Jessin, 12, told The Post of the discovered leg bone ...
Juvenile T. Rex finds: a fierce debate. Based on early estimates, Lyson thinks the fossil is that of a young T. rex that died of an unknown cause when it was 13 or 15 years old.
The first fossils unearthed were part of the upper body, specifically vertebra, parts of the jaw, and teeth. At the time of its discovery, the fossil was one of only 12 known T. rex skeletons of significant completion. [3] The name "Scotty" came from the celebratory bottle of scotch shared by the team that had discovered and identified the ...
Fossil footprints of dinosaurs from the Hell Creek Formation are very rare. As of 2017, there is only one find of a possible Tyrannosaurus rex footprint, dating from 2007 and described a year later. [19] The largest Triceratops skull ever discovered, nicknamed 'Dragon King', was found in Glendive, Montana, which is in the Hell Creek Formation ...