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Giganotosaurus is another of the largest carnivorous dinosaurs. However, its exact size is difficult to calculate because we only have fragmentary remains of this predator. Some estimates suggest it was about the same size as Tyrannosaurus rex, another famous Cretaceous carnivore that lived m
In the list of the largest dinosaurs, plant-eating sauropods occupy all the top spots, but large carnivorous dinosaurs lived alongside them during the Mesozoic Era. Illustration of Spinosaurus compared to human size A reconstruction of Spinosaurus bas
Due to the large size of the fossil, scientists once thought that the Poseidon dragon bone they discovered was an ancient tree. Poseidonosaurus lived during the Early Cretaceous Period approximately 118-110 million years ago. When the first Poseidonosaurus fossils were discovered in the Unite
Puertasaurus has very few bones, as shown here, but it is one of the largest dinosaurs ever discovered. Puertasaurus had only four vertebrae, but even these fragmentary remains indicate that this dinosaur was one of the largest titanosaurs. The dorsal vertebrae found are
Argentinosaurus is rarely found. This is a model of one of the dinosaur's giant vertebrae (backbones) on display at the Natural History Museum in Los Angeles. Weight: 70 tons Length: 35 meters The titanosaur Argentinosaurus was an
Visitors to Titanosaurus Patago at Britain's Natural History Museum will be able to see the dinosaur's skeleton, the first time it has been put on display in Europe. Weight: 57 tons Length: 37.5 meters Not only was the Patago tita
The largest dinosaur in the world is Titanosaurus. In fact, these prehistoric reptiles were the largest land animals that ever lived. Some dinosaurs could reach gigantic sizes. In fact, the largest are even larger than any land animal alive today! The largest dinosaurs ev
The Cretaceous is a geological period that began 145 million years ago and ended 66 million years ago. This is the last period of the Mesozoic Era. It occurred after the Jurassic and before the Paleogene—the first period of the Cenozoic Era, which is our current era. It
In the late Cretaceous period from 100 million to 65 million years ago, the dinosaur kingdom has entered its twilight period. But just as the end was approaching, many strange groups evolved in the dinosaur family. These new "actors" made the final scene of the dinosaur world extraordinarily
1. Early ornithopod dinosaurs Compared with the numerous representatives of sauropod dinosaurs in the late Triassic, very few ornithischian dinosaurs were discovered at that time. They are really rare. Skull, mandible and teeth of Heterodontosaurus
Early paleontologists believed that dinosaurs were a class of reptiles of their own, so they were unified into the "order Dinosaurs". Later, as scientists learned more about these animals, they discovered that they actually included two different orders of reptiles, namelySaurischians (common
Tyrannosaurus rex is the most attractive and shocking dinosaur family, a large carnivorous dinosaur that lived in the late Cretaceous period. It is also one of the dinosaurs that scientists know the most about and discuss with great enthusiasm. The reason for this is that, in addition to bein
Another theropod dinosaur produced in the lower part of the Yixian Formation is the unexpected Beipiaoosaurus. Its discovery was as unexpected as its species name. In 1997, Mr. Li Yinxian from the Fossil Management Office of Beipiao City donated a pile of relatively fragmented fossils to the
The Jehol Group in western Liaoning is a famous Mesozoic continental stratum in China and has always occupied an important position in the history of paleobiostratigraphy research in China. However, although this formation has produced numerous plant fossils, invertebrate fossils and fish fos
Hanauma Bay on the southern coast of Victoria, Australia is a famous source of dinosaur fossils on the Australian continent, but it is not easy to discover fossils here. Although fossils are often well preserved here, they are buried in hard sandstone, siltstone and mudstone and can only be u
At 20 degrees east longitude on the south side of the Arctic Circle, there is a group of remote islands floating lonely in the east of the Greenland Sea, cowering in the biting cold wind. This is the Spitsbergen Islands that no one pays attention to on weekdays. On August
On May 14, 1992, the staff of the Black Mountain Research Institute in Hill City, western United States, were doing their jobs as usual. Suddenly, a sound of sirens coming from far and near broke the tranquility here. Then, more than 30 FBI officers and more than 20 National Guard personnel b
Ornithopods are an important branch of the dinosaur family. They consist of some diverse vegetarian dinosaurs and include four families: Dimetrodon, Hypsilodon, Iguanodon and Hadrosaurid. Although all ornithopod dinosaurs are vegetarian, due to their adaptation to different living environment