In this way, the Mesozoic is comparable to the Cenozoic ( lit. 'Mesozoic' literally means 'middle life', deriving from the Greek prefix meso- ( ОјОµПѓОї- 'between') and zЕЌon ( О¶бї·ОїОЅ 'animal, living being'). The current name was proposed in 1840 by the British geologist John Phillips (1800вЂ“1874). The phrase 'Age of Reptiles' was introduced by the 19th century paleontologist Gideon Mantell who viewed it as dominated by diapsids such as Iguanodon, Megalosaurus, Plesiosaurus, and Pterodactylus. The flowering plants appeared in the early Cretaceous Period and would rapidly diversify throughout the end of the era, replacing conifers and other gymnosperms as the dominant group of plants. The first mammals also appeared during the Mesozoic, but would remain small-less than 15В kg (33В lb)-until the Cenozoic. Archaic birds appeared in the Jurassic, having evolved from a branch of theropod dinosaurs, then true toothless birds appeared in the Cretaceous. Dinosaurs first appeared in the Mid-Triassic, and became the dominant terrestrial vertebrates in the Late Triassic or Early Jurassic, occupying this position for about 150 or 135В million years until their demise at the end of the Cretaceous. Overall, however, the Earth was hotter than it is today. The climate of the Mesozoic was varied, alternating between warming and cooling periods.

The era witnessed the gradual rifting of the supercontinent Pangaea into separate landmasses that would move into their current positions during the next era. The Mesozoic was a time of significant tectonic, climatic, and evolutionary activity. The era began in the wake of the PermianвЂ“Triassic extinction event, the largest well-documented mass extinction in Earth's history, and ended with the CretaceousвЂ“Paleogene extinction event, another mass extinction whose victims included the non-avian dinosaurs. The Mesozoic is the middle of three eras since complex life evolved: the Paleozoic, the Mesozoic, and the Cenozoic. It is characterized by the dominance of archosaurian reptiles, like the dinosaurs an abundance of conifers and ferns a hot greenhouse climate and the tectonic break-up of Pangaea. s Й™-, - s oКЉ-/ mez-Й™- ZOH-ik, mez-oh-, mess-, mee-zЙ™-, -вЃ zoh-, mee-sЙ™-, -вЃ soh-), also called the Age of Reptiles and the Age of Conifers, is the second-to-last era of Earth's geological history, lasting from about 252В toВ 66 million years ago and comprising the Triassic, Jurassic and Cretaceous Periods.

There is 4 models of the Tyrannosaurus within Mesozoica.An approximate timescale of key Mesozoic events.ДЇirst appearance of the Conodont Hindeodus parvus.ДЈ1вЂ4вЂІ47вЂіN 119в„2вЂІ21вЂіE п»ї / п»ї 31.0798В°N 119.7058вЋ п»ї / 31.0798 119.7058.

Tyrannosaurus will require high level security.

Tyrannosaurus rex literally means 'tyrant lizard king.

The only known theropods that coexisted with it were Dakotaraptor and Acheroraptor, neither of which would have posed a significant threat to it. rex coexisted with other famous dinosaurs such as Triceratops, Ankylosaurus, and Anatosaurus. rex could live almost anywhere as only packs of animals would dare disturb it. With a powerful smell and thick skin, the T. rexes were able to spot even still prey from a distance.

rex's were sensitive to motion and were able to easily spot prey. Living in what is now western North America, the T. rex had incredibly powerful arms with which it could impale other foes. If not possible, it would try and throw them off balance first. rex would simply try and crush its enemies within its teeth. With an extremely powerful bite and a massive size, the T. Almost all other animals avoided the Tyrannosaurus rex due to the threat it posed. rexes will go to extreme measures to try and take vengeance. Juveniles will often challenge older members to try and take over. While a Tyrannosaurus is trusting to its own progeny and mate, it does not allow other members, unless they are a potential mate, to enter its territory.

Mesozoica diaper dinosaur