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Skeletal mount of the Tyrannosaurus holotype.. This timeline of tyrannosaur research is a chronological listing of events in the history of paleontology focused on the tyrannosaurs, a group of predatory theropod dinosaurs that began as small, long-armed bird-like creatures with elaborate cranial ornamentation but achieved apex predator status during the Late Cretaceous as their arms shrank and ...
When the preparation was complete in 2011, a ~65% complete T. rex skeleton was revealed. [ 2 ] Since its discovery and extensive subsequent study, Scotty has been referred to as the largest T. rex ever discovered in the world, the largest of any dinosaur discovered in Canada, and as one of the oldest and most complete fossils of its kind at ...
The holotype of T. mcraeensis is found in the strata that are around a few million years older than the accepted range of T. rex, which existed at the end of the Maastrichtian. The rock layers were initially estimated to date to between 72.7 and 70.9 Ma, correlating to the latest Campanian or earliest Maastrichtian. [ 68 ]
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 ...
Sue [a] (stylized: SUE), officially designated FMNH PR 2081, is one of the largest, [b] most extensive, and best preserved Tyrannosaurus rex fossils ever found, at over 90 percent recovered by bulk. [4] FMNH PR 2081 was discovered on August 12, 1990, [5] by American explorer and fossil collector Sue Hendrickson, after whom it is named.
A new modeling study from researchers at UC Berkeley estimates the total number of T. rex to ever roam Earth at 2.5 billion. The post Study Estimates 2.5 Billion T. Rex Roamed Earth Over Time ...
The species roamed North America for about 1.2 million to 3.6 million years, meaning the T. rex population density was small at any one moment. Study: 2.5 billion T. rex roamed Earth, but not all ...
The smallest known Tyrannosaurus rex individual (LACM 28471, the "Jordan theropod") is estimated to have weighed only 29.9 kilograms (66 lb) at only 2 years old, while the largest, such as FMNH PR2081 ("Sue"), most likely weighed about 5,654 kg (12,465 lb), estimated to have been 28 years old, an age which may have been close to the maximum for ...