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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]
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 ...
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 ...
Following the sale of "Sue," another Tyrannosaurus rex skeleton was, the specimen was put up for auction on eBay in 2000 under the name of "Z-rex", with an asking price of over US$8 million. It failed to sell online but was purchased for an undisclosed price in 2001 by British millionaire Graham Ferguson Lacey, who renamed the skeleton "Samson ...
Extraneous tooth cusps are documented in Tyrannosaurus. [28] Some teeth show evidence of bite marks by other Tyrannosaurus. [28] The Tyrannosaurus rex specimen AMNH 5027 has a deformity fusing the centra of the seventh and eighth back vertebrae. The centra of the tenth neck and first back vertebrae are fused in a similar fashion. [31]
Tyrannosaurid bones with tooth marks represent about 2% of known fossils with preserved tooth marks. [8] Tyrannosaurid teeth were used as holdfasts for pulling meat off a body, rather than knife-like cutting functions. [14] Tooth wear patterns hint that complex head shaking behaviors may have been involved in tyrannosaur feeding. [14]
A Forest Park resident shovels his driveway as a second round of snow falls on Monday, Jan. 6, 2025. According to the National Weather Service in Wilmington, the 8.4 inches of snow recorded in ...
In 1966, Joseph Leonard Weitz discovered specimen USNM PAL 768805, [3] a right distal premaxillary tooth of a tyrannosaur, from Big Game Ridge, an outcrop of the Harebell Formation within Yellowstone National Park and catalogued it as specimen W-66-1-8A until it was moved to the United States Geological Survey Paleontology collection in Denver, Colorado and was catalogued as specimen D704.