Dinosaur Box 1 Toy Collection Jurassic World Toy review. Suitable for kids of all ages. Learn about your favorite dinosaurs including T rex Spinosaurus, Velociraptors, Stegosaurus, Dilophosaurus, Ankylosaurus, Carnotaurus, Carcharodontosaurus, Allosaurus, Giganotosaurus, Pentaceratops, Argentinosaurus, Monolophosaurus, Baryonyx, Parasaurolophus, and much more. Great music, color, real Dinosaur sounds and special effects ❤️ Enjoy!
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Tyrannosaurus was the last known member of the Tyrannosaurids, and among the last non-avian dinosaurs to exist before the Cretaceous–Paleogene extinction.
Tyrannosaurus was a bipedal carnivore with a massive skull balanced by a long, heavy tail.
Relative to its large and powerful hind limbs, the fore limbs were short but unusually powerful for their size and had two clawed digits.
It had an estimated to weigh between 8.4 tons and 14 tons.
Although other theropods rivalled or exceeded Tyrannosaurus rex in size, it is still among the largest known land predators and is estimated to have exerted the largest bite force among all terrestrial animals.
By far the largest carnivore in its environment, Tyrannosaurus rex was most likely an apex predator, preying upon hadrosaurs, armoured herbivores like ceratopsians which would include Triceratops and ankylosaurs, and possibly sauropods.
Tyrannosaurus was an opportunistic scavenger.
Like other spinosaurids, Spinosaurus possessed a long, narrow skull resembling that of a crocodile and nostrils near the eyes instead of the end of the snout. Its teeth were straight and conical instead of curved and blade like as in other theropods.
The sail over the animal’s back was probably used for social displays or species recognition rather than for temperature regulation. Some authorities maintain that the sail was actually a hump used to store water and lipids.
Spinosaurus had pressure receptors inside the snout which allowed it to hold its snout at the surface of the water to detect swimming prey species without seeing them or being seen
The sauropods were the largest and heaviest dinosaurs. For much of the dinosaur era, the smallest sauropods were larger than anything else in their habitat, and the largest was an order of magnitude more massive than anything else that has since walked the Earth. Giant prehistoric mammals such as Paraceratherium (the largest land mammal ever) were dwarfed by the giant sauropods, and only modern whales approach or surpass them in size. There are several proposed advantages for the large size of sauropods, including protection from predation, reduction of energy use, and longevity, but it may be that the most important advantage was dietary. Large animals are more efficient at digestion than small animals, because food spends more time in their digestive systems. This also permits them to subsist on food with lower nutritive value than smaller animals. Sauropod remains are mostly found in rock formations interpreted as dry or seasonally dry, and the ability to eat large quantities of low-nutrient browse would have been advantageous in such environments.
Dinosaurs dominated the Earth for over 165 million years, from the Triassic period around 252 million years ago through the Jurassic period and until the end of the Cretaceous period around 66 million years ago, when a mass extinction happened – possibly volcanic activity or a gigantic asteroid which would effect the Earths temperature and weather dramatically. This whole period of time is known as the Mesozoic Era – often referred to as the Age of Dinosaurs. Some of the largest dinosaurs were over 30 metres/90 feet long and up to 15 metres/45 feet tall. The smallest Dinosaur was about the size of a chicken. Some of the largest Dinosaurs like Argentinosaurs, Brachiosaurus and Diplodocus are herbivores (plant eaters). These long necked giants are Sauropods. Some herbivores like Ankylosaurus and Stegosaurus have spikes horns plates club tails to help fight Carnivore (meat eating) Dinosaurs. Pterodactyls are not dinosaurs, they are flying reptiles that lived at the same time as dinosaurs. There were also reptiles that lived in the water such as Plesiosaurs. Birds descended from a type of dinosaurs known as theropods
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