The past 10 years have been a good "harvest year" for paleontologists, who have discovered a series of new dinosaur species of different sizes, some with long beaks and some with sharp teeth. These dinosaur fossils help scientists to further understand the evolution of dinosaur families, dietary structures, etc.
<h1 style="text-align: left;" > "mini" Tyrannosaurus rex</h1>
Lived 125 million years ago
World-renowned dinosaur expert Paul Serino recently discovered two new dinosaur species in China. One of them looks like a T-Rex, but the small predator, called Raptorex kriegstein, weighs only about 68 kilograms compared to the 6-ton Tyrannosaurus rex. Raptorex's upper limbs were thick and short, his lower limbs were muscular, his claws were huge, and he used the same hunting techniques as T.Rex. Before the advent of the real Tyrannosaurus rex, Raptorex had been settled on Earth for at least 50 million years. Scientists believe that many medium-sized versions of Raptorex and Tyrannosaurus rex have also appeared on Earth. But after a long evolutionary process, nature eventually chose larger species.
<h1 style="text-align: left;" > the smallest carnivorous dinosaur in North America</h1>
Lived 120 million years ago
Canadian researchers have discovered the smallest dinosaur in North America, West clawosaur. This "little guy" weighs only about 2 kilograms and is about 46 centimeters tall, which is only half the food of modern domestic cats. The researchers speculated that Diplodocus echiniosaurus, whose claws were so sharp that they walked on two legs, would feed on any prey they could kill, including insects, small mammals, amphibians and even dinosaur pups.
<h1 style="text-align: left;"> can't escape the quagmire dragon</h1>
Lived 159 million years ago
The Junggar Basin in western China is rich in dinosaur fossils. A team of researchers from China and the United States found a theropod dinosaur here, named "Inverse Quail Dragon", and scientists believe that theropod dinosaurs lost two outer and three inner fingers during evolution, while bird embryos showed that birds lost their outermost and innermost fingers. The first finger of the quagmire is smaller and the second finger is larger, suggesting that it is in the transition period from dinosaurs to birds.
<h1 style="text-align: left;"> octagonal Tyrannosaurus rex</h1>
Lived between 85 million and 95 million years ago
In the search of mongolia's Gobi Desert, foreign paleontologists have discovered a strange Tyrannosaurus rex called octagonal tyrannosaurus rex. The octagonal T. rex had slender teeth, a long nose, and eight nearly 13 cm long horns, suggesting that the diversity of the members of the octagonal T. rex family exceeded previous expectations.
<h1 style="text-align: left;"> Gobi Psittaculosaurus</h1>
Lived 100 million years ago
In Mongolia's Gobi Desert, Paul Sereno's team discovered a dinosaur 0.9 meters long with a beak similar to that of a macaw. Named The Gobi Psittacosaurus, it was the first dinosaur ever discovered that could have eaten nuts and seeds. Compared to other dinosaurs, The Gobi Psittacosaurus had a different way of eating, so its diet was more unusual. Like the parrot, it also has strong jaw muscles attached to the cheekbones, which helps it gain greater bite force and tear apart hard plants.
<h1 style="text-align: left;">Cock"</h1>
Lived 112 million years ago
In Montana, a pair of paleontologists Bill Parsons and Chris Parsons accidentally discovered an almost complete dinosaur skull. This skull is different from any previously found dinosaur skull, suggesting that it belonged to a new dinosaur species, "Oregosaurus cruzi," also known as the "North American Bison Head." It is between 4.6 and 6.1 meters long. It feeds on plants and looks like a tank. It is covered in protective armor and has a tail like a mace.
<h1 style="text-align: left;"> giant Northern Mountain Dragon</h1>
Lived between 65 million and 100 million years ago
A team of Chinese and American paleontologists found a strange dinosaur in Gansu, China, which is a mixture of ostriches and dinosaurs. They called it the Giant Northern Mountain Dragon, the largest ornithischian dinosaur ever discovered, weighing an estimated 635 kilograms. Although this toothless omnivorous dinosaur was huge, scientists believe that it did not fully develop after death, that is, it may have been larger.
<h1 style="text-align: left;"> Confucius Tianyulong</h1>
Lived between 120 million and 130 million years ago
Chinese paleontologists have discovered a "dinosaur with the most primitive feathers" in western Liaoning, the Confucius Tianyu Dragon. It was a small herbivorous dinosaur. Its findings suggest that the skin of early dinosaurs had feather-like protrusions. This means that all dinosaurs probably evolved from a common ancestor. To prove this, scientists need to know whether Confucius's feathers grew from the skin or from the subcutaneous tissue.