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The second toe, which was shorter and had fewer phalanges, also had more resistance and would make it easier to hold the claw off the ground and retain prey, a compromise with its predatory function and movement on the run, as occurs with modern seriemas, although to a lesser degree of specialization than dromaeosaurid dinosaurs. [23]
The largest land animal alive today, the bush elephant, weighs no more than 10.4 metric tons (11.5 short tons). [ 31 ] Among the smallest sauropods were the primitive Ohmdenosaurus (4 m, or 13 ft long), the dwarf titanosaur Magyarosaurus (6 m or 20 ft long), and the dwarf brachiosaurid Europasaurus , which was 6.2 meters long as a fully-grown ...
Unearthed in a rock layer dating back to the Triassic period, between 252 million and 201 million years ago, the Gondwanax paraisensis fossil comes from the time when dinosaurs as well as mammals ...
Deinocheirus (/ ˌ d aɪ n oʊ ˈ k aɪ r ə s / DY-no-KY-rəs) is a genus of large ornithomimosaur that lived during the Late Cretaceous around 70 million years ago. In 1965, a pair of large arms, shoulder girdles, and a few other bones of a new dinosaur were first discovered in the Nemegt Formation of Mongolia.
A related study also noted a locking mechanism in the lower jaw shared between the two genera. [43] In a separate paper, Currie noted the possibility that Alioramus might represent a juvenile Tarbosaurus , but stated that the much higher tooth count and more prominent nasal crests in Alioramus suggest it is a distinct genus.
The footprints date back to about 166 million years ago and appear to belong to two distinct types of dinosaurs Scientists Find Largest Dinosaur Footprint Site Ever Found in the U.K. — Here’s ...
Quetzalcoatlus (/ k ɛ t s əl k oʊ ˈ æ t l ə s /) is a genus of azhdarchid pterosaur that lived during the Maastrichtian age of the Late Cretaceous in North America. The type specimen, recovered in 1971 from the Javelina Formation of Texas, United States, consists of several wing fragments and was described as Quetzalcoatlus northropi in 1975 by Douglas Lawson.
Nature can be absolutely beautiful. But it can also be scary as hell. Earthquakes, volcanoes, tsunamis, tornadoes, floods and fires cause mass destruction around the world.But Mother Nature is ...