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Top 10 Tyrannosaurs Featuring tyannosaurids of the Tyrannosauridae as well as the more primitive tyrannosauroids of the Tyrannosauroidea. 10 - Guanlong As far as tyrannosaurs go, Guanlong is considered to be a proceratosaurid tyrannosauroid. In more simple terms this means that Guanlong is a basal tyrannosaur that appeared at the same time as other …
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The first skeleton of Tyrannosaurus rex was discovered in 1902 in Hell Creek, Montana, by the Museum's famous fossil hunter Barnum Brown. Six years later, Brown discovered a nearly complete T. rex skeleton at Big Dry Creek, Montana. The rock around it was blasted away with dynamite to reveal a "magnificent specimen" with a "perfect" skull.
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Tyrannosaurus as valid tyrannosaurid genera from western NorthAmerica,andsuggestedthatNanotyrannus lancensis is distinctfromT. rex.Inanewphylogeneticanalysis(Currieet al.2003),Albertosaurus,andGorgosaurus arelinkedinthe subfamily Albertosaurinae, whereas Alioramus, Daspleto− saurus, …
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A new analysis of Tyrannosaurus skeletal remains reveals physical differences in the femur, other bones, and dental structures across specimens that could suggest Tyrannosaurus rex specimens need to be re-categorized into three distinct groups or species, reports a study published in Evolutionary Biology.
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Artistic reconstructions of face-biting behavior in T. rex. (Julius T. Csotonyi) The scars on dozens of Tyrannosaurus rex skulls suggest these apex predators repeatedly bit one another's faces once they hit reproductive age. When paleontologists analyzed 202 T. rex fossils of various sizes and ages, they found evidence of tooth marks …
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Cranial anatomy of tyrannosaurid dinosaurs from the Late Cretaceous of A lberta,Canada Cranial anatomy of tyrannosaurid dinosaurs from the Late Cretaceous of Alberta, Canada PHILIPJ.CURRIE Currie, P.J. 2003. Cranial anatomy of tyrannosaurid dinosaurs from the Late Cretaceous of Alberta, Canada. Acta Palaeontologica …
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An artist's depiction of a young Tyrannosaurus rex, about 13 years old, chewing on the tail of an Edmontosaurus, a plant-eating, duckbill dinosaur of the late Cretaceous Period. The teeth punctures left in the bone, which the youngster probably scavenged, allowed scientists to estimate the bite force that juvenile tyrannosaurs could …
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This Tyrannosaurus, over thirty years old – the oldest known Tyrannosaurus specimen – lived about 67 million years ago. It is considered to be the third most complete Tyrannosaurus found, with between 75% to 80% of its bone volume recovered. The specimen was named Trix after the former Queen Beatrix of the Netherlands.
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Dr Ashley Morhardt, a palaeontologist at Washington University in St Louis, Missouri, scanned a Stegosaurusskull and found that the brain is indeed small for a dinosaur, but it was closer in size to two or three walnuts. No doubt, this was more than enough brainpower for Stegosaurusto survive in the rough-and-tumble world of the Jurassic.
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Tyrannosaurus rex had approximately 60 robust serrated teeth that were wide and dull compared to the flat and dagger-like teeth of other carnivorous dinosaurs. These teeth varied in shape and purpose. The front teeth were closely packed, were more chisel-like that the rest, and were for gripping and pulling.
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Tyrannosaurus rex has been known to science since the end of the nineteenth century, and to this day remains arguably the most popular dinosaur the world over. This is evidenced by its almost mandatory inclusion in books, TV shows, games and websites that are about dinosaurs in general. Tyrannosaurus also probably has more toys and merchandising …
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