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Tyrannosaurus rex
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Tyrannosaurus Sue with the Giganotosaurus holotype by Scott Hartman https://www.skeletaldrawing.com/home/mass-estimates-north-vs-south-redux772013
 *This image is copyright of its original author
We always imagine some fights between Tyrannosaurus and triceratops, more rarely between tyrannosaurus and a duck-bylled dinosaur, and almost never a tyrannosaurus and a sauropod. One of the Cretaceous sauropod likely to have been aggressed by this famous theropod was the Alamosaurus...
From the site: http://prehistoricbeastoftheweek.blogspo...-week.html  *This image is copyright of its original author
The most classical confrontation between dinosaurs. Sometimes the t-rex wins, sometimes the triceratops wins...
Fossilised T-rex's teeth...
"If you want to know the secret behind the success of Tyrannosaurus rex and its meat-eating dinosaur cousins, look no further than their teeth. Scientists in 2015 unveiled a comprehensive analysis of the teeth of the group of carnivorous dinosaurs called theropods, detailing a unique serrated structure that let them chomp efficiently through the flesh and bones of large prey. Theropods included the largest land predators in Earth’s history. They first appeared about 200 million years ago and were the dominant terrestrial meat-eaters until the age of dinosaurs ended about 65 million years ago. University of Toronto Mississauga paleontologist Kirstin Brink said fossil evidence showed that T. rex’s teeth could crush bone. Its teeth have been found embedded in the bones of its prey and chunks of bone appear in its fossilized dung. “But the serrations were most efficient for piercing flesh and gripping it while ripping off a chunk of meat, called the ‘puncture and pull’ feeding style,” Brink said."
No indication but I would believe these photos show the comparaison between a T-rex's skeleton (at the top) and an other big carnosaur's skeleton (at the bottom), the giganatosaurus's skeleton ?
(02-07-2020, 11:11 AM)Spalea Wrote: No indication but I would believe these photos show the comparaison between a T-rex's skeleton (at the top) and an other big carnosaur's skeleton (at the bottom), the giganatosaurus's skeleton ? You are correct that is Tyrannosaurus specimen Sue the best preserved Tyrannosaurus on record with a Giganotosaurus.
Short video about Scotty, the actual T-rex whose the skeleton is the largest T-rex's skeleton ever found.
" Scotty: The Dinosaur Skeleton Which is a Contender for the Largest T. Rex Ever ?
In March 2019, a Tyrannosaurus rex made headlines 66 million years after it had died. Was its skeleton the largest of its kind ever discovered? "Scotty", the skeleton had been discovered in Saskatchewan, Canada. In fact, these bones had been unearthed decades before. They were found in 1991, by then-school teacher Robert Gebhardt, but were so deeply encased in sandstone that it has taken decades to painstakingly remove them. Until now, the largest T. rex skeleton known to science was that of "Sue". It was uncovered in South Dakota, USA, on 12 August 1990, by explorer and fossil collector Sue Hendrickson, after whom it was named. So how do Scotty and Sue size up? Unfortunately, it's practically impossible to make a direct comparison, as the two specimens are not equally whole. Sue is approximately 90% complete, compared to 65% for Scotty – indeed, Sue is the most complete T. rex skeleton – comprising 250 of the 380 bones that the body would have featured. That also makes it possible to calculate this dinosaur's original size – 12.5 m (41 ft) long and 4 m (13 ft) tall at the hip – fairly precisely. From what we can tell, Scotty was probably slightly longer – perhaps up to 13 m (42 ft 7 in), according to the University of Alberta's Dr W Scott Persons, who led a study into calculating Scotty's dimensions. But scientists always allow a margin of error when comparing such ancient skeletons. " |
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