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Albertosaurines and tyrannosaurines share arms of about equal length, with the exception of Tarbosaurus, which had short arms for its size. [1] Size comparison of Albertosaurus with Gorgosaurus and a human. Albertosaurus was smaller than some other tyrannosaurids, such as Tarbosaurus and Tyrannosaurus.
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 ...
According to Schmerge, as that feature is absent in T. rex and found only in Dryptosaurus and albertosaurines, this suggests Nanotyrannus is a distinct taxon within the Albertosaurinae. [109] The same year, Carr and colleagues noted that this was insufficient to clarify Nanotyrannus ' validity or classification, being a common and ...
Other paleontologists have produced significantly lower bite force estimates. In 2021, given that the largest known Gorgosaurus had a similar bite force to the similar-sized Tyrannosaurus, Therrien and colleagues proposed that the maximum bite force that could be produced by adult albertosaurines is around 12,200 to 21,800 newtons. [34]
The eye-sockets of T. rex faced mainly forwards, giving it good binocular vision. The eye-sockets of Tyrannosaurus are positioned so that the eyes would point forward, giving them binocular vision slightly better than that of modern hawks. While predatory theropods in general had binocular vision directly in front of their skull, tyrannosaurs ...
Many of us are in the habit of plugging our phones in to charge overnight so we start each day at 100%. However, you might not be doing yourself ― or your battery ― any favors in the long run.
Tyrannoraptora (Tyrannosaurus rex + P. domesticus) Coelurus fragilis; Tyrannosauroidea (T. rex > Ornithomimus velox, Deinonychus antirrhopus, A. fragilis) Dryptosauridae; Tyrannosauridae (T. rex + Tarbosaurus bataar + Daspletosaurus torosus + Albertosaurus sarcophagus + Gorgosaurus libratus) Tyrannosaurinae (T. rex > A. sarcophagus ...