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Tyrannosaurus (/ t ɪ ˌ r æ n ə ˈ s ɔː r ə s, t aɪ-/) [a] is a genus of large theropod dinosaur.The type species Tyrannosaurus rex (rex meaning 'king' in Latin), often shortened to T. rex or colloquially T-Rex, is one of the best represented theropods.
Montana's T. rex (also known as "Peck's rex", "Peckrex", "Rigby's rex" and Tyrannosaurus "imperator") is the nickname given to a fossil specimen found in Montana in 1997. [54] The discovery was made by Louis E. Tremblay on 4 July 1997 working under the supervision of J. Keith Rigby Jr. who led the excavation and bone preparation.
Cranial kinesis is the ability of parts of the skull to move against each other at joints within the skull. Though cranial kinesis had been proposed for a number of non-avian dinosaur taxa, a 2008 review found most of these inferences problematic. [44] Forms of cranial kinesis suggested to occur in dinosaurs include:
Growth curves indicate that, as in mammals and birds, T. rex growth was limited mostly to immature animals, rather than the indeterminate growth seen in most other vertebrates. [50] It has been indicated that the temperature difference may have been no more than 4 to 5 °C (7 to 9 °F) between the vertebrae of the torso and the tibia of the ...
Tyrannosauroidea (meaning 'tyrant lizard forms') is a superfamily (or clade) of coelurosaurian theropod dinosaurs that includes the family Tyrannosauridae as well as more basal relatives.
Jurassic World invented the Indominous rex dinosaur and the whole planet seems thrilled they did. So what real dinosaur did the movie-makers use to design I-rex? Check out Therizinosaurus. That's ...
Originally, the Field Museum had plans to incorporate Sue into their preexisting dinosaur exhibit on the second floor, but had little left in their budget to do so after purchasing it. Instead, the T. rex was put on display in the building’s main hall directly in front of the museum’s north entrance, where it would remain for the next 18 years.
Calculations of the volumes of various parts of the sauropod Apatosaurus ' respiratory system support the evidence of bird-like air sacs in sauropods: Assuming that Apatosaurus, like dinosaurs' nearest surviving relatives crocodilians and birds, did not have a diaphragm, the dead-space volume of a 30-ton specimen would be about 184 liters. This ...