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Albertosaurines, or dinosaurs of the subfamily Albertosaurinae, lived in the Late Cretaceous of United States and Canada. The subfamily was first used by Philip J. Currie , Jørn H. Hurum , and Karol Sabath as a group of tyrannosaurid dinosaurs.
The other major subfamily of tyrannosaurids is Tyrannosaurinae, which includes members like Daspletosaurus, Tarbosaurus, and Tyrannosaurus. Compared with the more robust tyrannosaurines, albertosaurines had slender builds, with proportionately smaller skulls and longer bones of the lower legs and feet (metatarsals and phalanges). [28] [40]
Like albertosaurines, tyrannosaurines also had heterodont dentition, large heads design to catch and kill their prey, and short didactyl arms. Based on the growth stages of Tyrannosaurus (and possibly Tarbosaurus [20]), tyrannosaurines undergone ontogenetic changes from gracile or slender, semi-longirostrine immatures to robust, heavy-headed ...
Tyrannosaurus was named by Henry Fairfield Osborn in 1905, along with the family Tyrannosauridae. [17] The name is derived from the Ancient Greek words τυραννος tyrannos ('tyrant') and σαυρος sauros ('lizard'). The superfamily name Tyrannosauroidea was first published in a 1964 paper by the British paleontologist Alick Walker. [18]
On August 12, 1990, Susan Hendrickson -- a fossil hunter -- discovered three huge bones protruding out of a cliff near Faith, South Dakota. Those burned turned out to be part of the largest ever T ...
In the first episode the survival strategies of the late-Cretaceous sauropod Sauroposeidon are contrasted with those of Tyrannosaurus rex.The primary distinction drawn is the difference between Sauroposeidon's speculated r selector method of reproduction (i.e. many offspring with no parental care) versus T. rex's proposed K selector method (i.e. few offspring with very invested parental ...
The Tyrannosaurus rex steps on a twig, which makes the Monoclonius wary. The Monoclonius lets out a trumpet to signal the herd, then keeps walking deeper into the forest. It soon stumbles upon the remains of the Edmontosaurus killed by the Tyrannosaurus rex. While the Monoclonius ponders over the carcass, the Tyrannosaurus rex sneaks up from ...
Three years ago, we shut down two popular, U.S.-based illegal subscription #streaming services. We're proud to be the world’s leading coalition dedicated to combatting the illegal acts of ...
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