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Although Larson (2013) saw Jane as more identical to CMNH 7541 and LACM 28471 than to adult T. rex in having a higher tooth count, large pneumatic foramen on the center of the quadratojugal, T-shaped postorbital, and fused shoulder blade and pelvis, [70] Yun (2015) concurred with the opinion of most workers that Nanotyrannus is a juvenile T ...
Cementum - This tissue covers the root of a tooth and is an attachment tissue that forms part of the periodontium. It is typically infilled with Sharpey's fibers that help anchor the tooth in place in the socket. [6] Periodontal ligament - This is a soft tissue layer between the cementum and the tooth socket. While this is not preserved in ...
At present, two species of Tyrannosaurus are considered valid; the type species, T. rex, and the earlier in age and more recently discovered T. mcraeensis. As the archetypal theropod, Tyrannosaurus has been one of the best-known dinosaurs since the early 20th century and has been featured in film, advertising, postal stamps, and many other media.
With her enormous teeth frozen in a sinister grin, "Trix" is the first real T.rex skeleton to go on display in France, according to the National Museum of Natural History. One of the most complete ...
Stan Sacrison, an amateur paleontologist, was responsible for the initial discovery of Stan's bone fragments in 1987, and as a result is the namesake for the T. rex.He was out looking at plant life in South Dakota when he spotted Stan's pelvis visible in the side of a cliff. [3]
Tyrannosaurid bones with tooth marks represent about 2% of known fossils with preserved tooth marks. [124] Tyrannosaurid teeth were used as holdfasts for pulling meat off a body, rather than knife-like cutting functions. [125] Tooth wear patterns hint that complex head shaking behaviors may have been involved in tyrannosaur feeding. [125]
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What was 21-feet tall, looked like a T-rex and was covered in feathers? It was the Cryolophosaurus, of course! This eccentric beast roamed the Earth during the early Jurassic Period, around 188 to ...