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Horner then studied the bones, and at first, there was a refusal to return the bones to Brandvold. [12] [13] It contained the first dinosaur eggs in the Western hemisphere, the first dinosaur embryos, and settled questions of whether some dinosaurs were sociable, built nests and cared for their young. The discovery established Horner's career.
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 T. rex was first discovered, the humerus was the only element of the forelimb known. [6] For the initial mounted skeleton as seen by the public in 1915, Osborn substituted longer, three-fingered forelimbs like those of Allosaurus. [4] A year earlier, Lawrence Lambe described the short, two-fingered forelimbs of the closely related ...
Tyrannosaurus rex: 20% of a skeleton Collected by Japeth Boyce in Wyoming, United States in 1995 Bonhams: May 16, 2004: Los Angeles $93,250 [c] $150,422 Reported to potentially be the same individual as the first T. rex specimen ever discovered, now at the Natural History Museum, London. [11] [12] Unidentified Nest with 22 eggs
A rare fossil discovery marks the first time a tyrannosaur’s stomach contents have been found, a new study says. The young apex predator was a cousin of T. rex.
90% complete by volume. Named for Susan Hendrickson who discovered the fossil. Sue the T. rex: Tara [23] Palm Beach Museum of Natural History Tyrannosaurus: Tinker [204] [205] The Journey Museum and Learning Center [206] [207] Tyrannosaurus: Most complete juvenile T. rex skeleton found to date. Tinker the T. rex: Thanatos [208] TMP 2010.5.7 [209]
This is the first tyrannosaur skeleton with prey items preserved inside its stomach. Based on tooth marks left on bones, adults are known to have hunted big plant-eating dinosaurs.
A discovery of features in a Tyrannosaurus skeleton provided evidence of medullary bone in extinct dinosaurs and, for the first time, allowed paleontologists to establish the sex of a fossil dinosaur specimen. Further research has found medullary bone in the carnosaur Allosaurus and the ornithopod Tenontosaurus.