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The specimen's considerable size places it within the range of known T. rex individuals, suggesting the presence of large tyrannosaurids during the Campanian stage (~75 million years ago), a temporal range earlier than the established Maastrichtian age (~68–66 Ma) for Tyrannosaurus rex. However, the exact age and provenance of CM 9401 remain ...
In one story arc, in which Calvin writes a school paper on the T. rex predator/scavenger debate, he argues that T. rex was a predator because "They're so much cooler that way." T. rex is also featured as the protagonist in the long-running webcomic Dinosaur Comics by Ryan North. Various T. rex have featured in stories published in the British ...
This sudden change in growth rate may indicate physical maturity, a hypothesis that is supported by the discovery of medullary tissue in the femur of an 18-year-old T. rex from Montana (MOR 1125, also known as "B-rex"). [51] Medullary tissue is found only in female birds during ovulation, indicating that "B-rex" was of reproductive age. [52]
Mounted skeletons of different age groups, Los Angeles Natural History Museum. The feeding behaviour of Tyrannosaurus rex has been studied extensively. The well known attributes of T. rex (its jaws, legs and overall body design) are often interpreted to be indicative of either a predatory or scavenging lifestyle, and as such the biomechanics, feeding strategies and diet of Tyrannosaurus have ...
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 ...
“T. rex does come out as the biggest-brained big dinosaur we studied, and the biggest one not closely related to modern birds, but we couldn't find the 2 to 3 billion neurons she found, even ...
Bucky the T. rex: Casper Statens Naturhistoriske Museum [176] [177] Tyrannosaurus rex: Casper the T. rex: Chinley [178] [179] [180] Tyrannosaurus: Previously known as the Mud Butte Tyrannosaur Chomper MOR 6625 Museum of the Rockies: Tyrannosaurus: Juvenile skull, named for initial find of small lower jaw fragment. Cast of Chomper in Berkeley ...
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