How many types of dinosaurs are there? Where is the largest dinosaur fossil? Please, 3Q

Western Liaoxi Chaoyang Dragon Brachyspinosaurus Brachyspinosaurus Brachyspinosaurus Macrophosaurus Heilongjiang Manchusaurus Air Dragon Tainan Tulong Ancient Pterodactylus Protosaurus Plate Dragon Imaginary Giant Lufengosaurus Prismatic Tooth Mutabrasaurus Terror Velociraptor Crocodilesaurus Giant Zhuchengsaurus Lokasaurus Spinosaurus Ankylosaurus Ankylosaurus Polydentate Halosaurus Ceratosaurus Ceratosaurus One-clawed dragon Halberdus Triceratops Darth Bretsaurus Lizardsaurus Gymnosaurus Megalosaurus Walker's 329 species The largest dinosaur in the world The largest dinosaur we have found so far is the Episaurus, which was 39 to 52 meters long! Heights can reach up to 18 meters!! The weight reaches 130 tons!!

In other words, 2 to 3 vibrators stand together and line up from one gate to the other in the football field. And if such a heavy behemoth walks on the field, its huge feet will make the earth tremble every time it steps on the ground, just like **. This is the meaning of the name "Zhenlong".

Earthquake Dragon The age of the earthquake dragon lived was about 162 million years ago to 136 million years ago in the late Jurassic period. Taxonomically, it belongs to the sauropods, sauropods, and diplodocids. In addition to the Episosaurus, the dinosaurs of the sauropod suborder (commonly known as sauropods) with huge bodies living on the earth at that time included Diplodocus (26 meters long), Brontosaurus (21 meters long, weighing 25 tons), Supersaurus (42 meters long, shoulders and hips), Mamenxisaurus (22 meters long) and Brachiosaurus (25 meters long, weighing 30 50 tons) and so on.

A museum in the Dinosaur Park in Changzhou, Jiangsu. Wish.

There are five types of dinosaur fossils, which are footprints, bones, ** imprints, eggs, and nests.

1. Footprints. Footprints (footprints) are fossils that dinosaurs stepped out of, and they have an irreplaceable role as bone fossils, which can not only reflect the daily habits of dinosaurs, but also explain the relationship between dinosaurs and their environment.

2. Bones. Bones (including teeth), these hard tissues deposited in sediment are preserved by sedimentation and complete mineralization.

3. **Blotting. Blots are extremely rare, and the structure, shape, and area of their scales can be determined by collecting specimens.

4. Eggs and nests. Dinosaur egg fossils are oval in shape, and there are other shapes, which are rarely found and preserved, and have scientific value and ornamental value.

Introduction to dinosaurs

Dinosaurs, refers to the recent common ancestor of Triceratops, modern birds, and Diplodocus and all their descendants. The muscular limbs, long tails, and massive bodies are some of the non-avian dinosaurs. They mainly inhabit woodlands or open areas on lakeshore plains (or coastal plains).

In 1841, when British scientist Richard Owen studied several fossilized lizard bones, he believed that they were left by some prehistoric animal and named them dinosaurs, which means "terrifying lizards". The biggest difference between dinosaurs and other reptiles is the way they stand and the way they walk, dinosaurs have a completely upright posture and their limbs are built directly below their bodies.

1. The world's largest dinosaur fossil on Fengyan is a titanosaur dinosaur fossil with a body length of more than 40 meters.

The fossil was found in the desert of the Patagonian region of Argentina on May 17, when a total of 223 fossils were found at the excavation site, including a huge leg bone of about a meter. The titanosaur fossil was pieced together and measured, and it was found to be 40 meters long and about 20 meters tall, and according to biologists' estimates, the dinosaur should weigh more than 77 tons. It is currently the largest land animal that has ever lived on Earth, and it is also the largest dinosaur in the world, and the smallest dinosaur in the world is only 40 centimeters in size.

Two kinds, female dinosaurs and male dinosaurs.

Starvation existed with 50 million years ago.

Chinese scientists recently discovered hairy dinosaur fossils about 100 million years ago in the Linglong Pagoda area of Jianchang County, Liaoning Province, which is the world's earliest hairy dinosaur fossils discovered so far, and is a new and international major breakthrough in the study of the origin of birds.

According to Hu Dongyu, a professor at Shenyang Normal University who presided over the study, the fossil is about 100 million years old, about 20 million to 30 million years earlier than the world's earliest "hairy dinosaur" found in the "Rehe biota" in western Liaoning, and is currently the world's earliest feathered species.

Dinosaurs were a group of terrestrial animals that lived between 235 million and 65.95 million years ago, and could walk upright with hind limbs. Most of the dinosaurs have gone extinct, but the descendants of the dinosaurs, the birds, have survived and survived to this day.