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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]
Restored as a feeding tyrannosaur. Labocania was a medium-sized carnivore. In 2010, Gregory S. Paul estimated the length of L. anomala at 7 metres (23 ft) and its weight at 1.5 long tons (1.7 short tons). [4] In 2016, Molina-Pérez & Larramendi gave a higher estimate of 8.2 metres (27 ft) meters long and 2.6 long tons (2.9 short tons) in weight ...
Dinosaur teeth have been studied since 1822 when Mary Ann Mantell (1795-1869) and her husband Dr Gideon Algernon Mantell (1790-1852) ...
Engraved on the tooth is a picture of the ship Francis, which artist Fred Myrick served on during the early 1800s. Now, sperm whales are protected under the Marine Mammal Protection Act. So, in ...
A tooth from what is now documented as a Tyrannosaurus rex was found in July 1874 upon South Table Mountain (Colorado) by Jarvis Hall (Colorado) student Peter T. Dotson under the auspices of Prof. Arthur Lakes near Golden, Colorado. [1] In the early 1890s, John Bell Hatcher collected postcranial elements in eastern Wyoming.
The skull was 1,394 mm (54.9 in) long, and most of the teeth were still intact. After the group completed excavating the bones, each block was covered in burlap and coated in plaster , followed by a transfer to the offices of the Black Hills Institute, where they began to clean the bones.
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