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Deinodon teeth, the earliest known tyrannosaurid remains. The first remains of tyrannosaurids were uncovered during expeditions led by the Geological Survey of Canada, which located numerous scattered teeth. These distinctive dinosaur teeth were given the name Deinodon ("terrible tooth") by Joseph Leidy in 1856.
In 2001, William Abler observed that Albertosaurus tooth serrations resemble a crack in the tooth ending in a round void called an ampulla. [39] Tyrannosaurid teeth were used as holdfasts for pulling flesh off a body, so when a tyrannosaur pulled back on a piece of meat, the tension could cause a purely crack-like serration to spread through ...
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]
Dinosaur teeth have been studied since 1822 when Mary Ann Mantell (1795-1869) and her husband Dr Gideon Algernon Mantell (1790-1852) ...
In 1876 Cope created an Aublysodon lateralis, based on specimen AMNH 3956, [13] [14] a tooth of a juvenile tyrannosaur which has been synonymized with Deinodon horridus. [15] In 1892 Marsh named two more species: Aublysodon amplus and Aublysodon cristatus , respectively based on teeth YPM 296 and YPM 297; the latter has also been placed in the ...
"Today, we're going to give it an insurance valuation of $150,000 to $200,000," said appraiser Allan Katz on "Antiques Roadshow." "That's extraordinary," said the tooth's owner. Ain't that the tooth!
He called this group Tyrannoraptora (which in the absence of papers that recover a Tyrannosaur-maniraptoran clade), is a clade which contains most Coelurosaurs. [39] A 2007 analysis found the family Coeluridae , including the Late Jurassic North American genera Coelurus and Tanycolagreus , to be the sister group of Tyrannosauroidea.
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.