Where is the world s largest collection of dinosaur fossils?

The world's largest dinosaur fossil group has just been discovered in Zhucheng, Shandong Province, and Zhucheng is the hometown of dinosaurs.

International **08 February 27 news (reporter Chen Cheng, Zigong Tai Yu Ling, Zhang Cuina) Zigong has become the second global geopark in Sichuan Province after Xingwen. On the 26th, Zigong City** received a letter from UNESCO, and the United Nations officially accepted Zigong Address Park to join the UNESCO Global Geopark Network.

Zigong Geopark is composed of Dashanpu Dinosaur Fossil Group Relics Park, Zigong Salt Industry Science and Technology Park, and Rongxian Qinglongshan Dinosaur Fossil Group Relics Park. It is understood that the overall plan of "Zigong Global Geopark" (2007-2020) prepared by the Geopark (Relics) Investigation and Evaluation Research Center of China University of Geosciences commissioned by Zigong City has been completed. According to the plan, by 2020, Zigong City's direct investment in the construction of the "Zigong Global Geopark" will reach 100 million yuan.

It is understood that the Global Geoparks Programme is a global network under the leadership of UNESCO. The plan is to establish about 20 Global Geoparks each year since 2004, for a total of 500 worldwide. Previously, UNESCO approved a total of 57 Global Geoparks in three batches, including 18 in China.

In the fourth batch of global geopark evaluation, Zigong Geopark and Jiangxi Longhu Mountain were approved.

2008-04-10 21:49 Report.

Dinosaur fossilsThe following figure looks like:

Dinosaur fossils are not easy to preserve, and only a few rather special geological rings can preserve the fossils well, most often in sedimentary rocks with delicate textures.

After the death of a dinosaur, the soft tissues in the body disappeared due to decay, but the bones, teeth and other hard bodies.

The tissues are deposited in sediment and are isolated from oxygen, and after a long period of sedimentation, the bones are completely mineralized and preserved.

Examples:

In 2017, dinosaur fossils were discovered in Chongqing, and experts immediately took protective measures to protect them, and used scientific and technological means to excavate them. The age span of fossil distribution is large, and according to the dinosaur fossils excavated in the strata, the age of distribution spans the Early Jurassic.

to the Middle Jurassic to the Late Jurassic. The fossils are widely distributed, and many fossils have been revealed along the strike of about five kilometers of rock formations, and the potential for excavation is very large.

It is reported that the discovery of the "Giant Raptor" was purely accidental - in April 2005, Dr. Xu Xing, a well-known dinosaur expert, made a random discovery in the basin where the dinosaur fossils were located.

The "Giant Raptor" is good at running with feathers

Due to its large size, researchers once thought it belonged to the Tyrannosaurus family during its discovery in the wild, but the study eventually confirmed that the Giant Raptor belonged to the Ovirapiraptor class and represented a transitional type of Ovirapiraptor species.

The "Megaraptor" weighed about 300 times as much as its close relative, the Tail-Feathered Dragon, and scientists speculate that the "Double-Rider" was also covered in feathers like the Tail-Feathered Dragon. Moreover, the experts also found that the hind limbs of the "double raptor" were extraordinarily proportional, and generally speaking, when the dinosaur became larger, its limbs became thicker and the distal parts became shorter.

However, the "two-company giant raptor" has slender hind limbs and slender calves, which indicates that its running ability is definitely stronger than that of other dinosaurs.

Dinosaurs died

Through the analysis of the microscopic characteristics of the skeleton of the "Megaraptor", scientists found that the fossil specimen died when he was about 11 years old, and had just entered adulthood when he died, and it is speculated that the body weight of the fully adult "Megaraptor" is far more than 1,400 kilograms.

Scientists also used CT scans to look inside their spine and found that it had a spongy structure similar to some large herbivorous sauropods, possibly as a strategy to adapt to weight loss.

There are at least two questions that remain unanswered about the newly discovered "Two-Linked Giant Raptor". One is that the "Giant Vetor" like birds and other oviraptorosaurs, did not have teeth, but developed a huge beak, was it used to cut plants or prey on small animals? Or even used to crush eggshells?

These are all mysteries. In addition, scientists have not yet been able to confirm the function of some of the strange holes in the vertebral body of the "Giant Raptor".

Dinosaur fossils

With a body length of about 8 meters, a standing height of more than 5 meters, and a weight of about 1,400 kilograms, it is comparable to the world-famous Tyrannosaurus rex. Experts believe that the "Giant Raptor" has many characteristics similar to birds, and this new major research result has greatly enriched the understanding of the evolution of dinosaurs into birds. Experts call the newly discovered dinosaur "the world's largest bird-like dinosaur with a feathered beak but no teeth in the world."

Experts say that the average bird-like dinosaur is small, most of them weigh a few kilograms, and some are even less than one kilogram, but the weight of the "two-even giant raptor" can reach 1400 kilograms, which is hundreds of times that of the general bird-like dinosaur, and it is not too much to call it "the largest bird-like dinosaur in the world today".

1. The world's largest dinosaur fossil is a titanosaur dinosaur fossil with a body length of more than 40 meters, and this unnamed new dinosaur is also the largest dinosaur found so far.

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.

The world's largest dinosaur fossil refers to the brontosaurus fossil found in Argentina.

José Luis Calvallido was one of the scientists involved in the excavation of the world's largest dinosaur fossil. The dinosaur's "skeleton size is larger than any large animal known in the past, and is probably the largest creature ever to walk on Earth," he said. "According to speculation and calculation, it is 40 meters long, 20 meters tall when standing with its neck straight, which is equivalent to seven floors, and a single femur is a meter long.

Interestingly, previously found dinosaur fossils were often fragments, but this time an almost complete skeleton was found. Since the femur and humerus of a dinosaur are directly related to its weight and size, it is also possible to estimate the weight of a large dinosaur with some accuracy for the first time. The figures were also very impressive, this dinosaur weighed almost 80,000 kilograms, which is equivalent to 14 African elephants, so this is definitely the largest dinosaur fossil ever found.

The largest dinosaur fossil in China

The largest complete dinosaur fossil in Asia is the Hechuan Mamenxisaurus orthotype specimen, which recently underwent its first major overhaul since the fossil was mounted in 1965. The specimen of Mamenxisaurus in Hechuan preserved 35 tail vertebrae, and the tail vertebrae were restored according to 55 sections, and the length of the skeleton was disturbed by 2 meters, and the total length increased to 24 meters.

This famous dinosaur fossil in China was discovered in 1957 by a team of petroleum geological exploration team near Taihe Town, Hechuan District, Chongqing City. After the fossil was unearthed, it was handed over to the Chengdu Institute of Geology (now Chengdu University of Technology) in 1961 for safekeeping. Professor Yang Zhongjian, the "father of Chinese dinosaur research", and others named it Hechuan Mamenxisaurus.

The family of dinosaurs that once "dominated" the earth is extremely large. As a genus of sauropod dinosaurs, Mamenxisaurus lived in the late Jurassic period and is famous for its extra-long neck. Its neck length is equivalent to half the length of its body, and the number of cervical vertebrae reaches 19 segments, the most of any known dinosaur.

The adult Mamenxi dragon was huge, with a neck length of nearly 10 meters.

Dinosaur fossil burial site.

There are only a few fairly special geological settings that have been able to preserve fossils well, most commonly sedimentary rocks with delicate textures. Dinosaur fossils are even more difficult to preserve due to their age. The main places where dinosaur fossils are buried are Solon Houfen in Germany, Flame Cliff in the Gobi Desert in Mongolia, and Lufeng in Yunnan, China.

1. Soren Houfen.

The Solunhofen Quarry in Germany was a shallow tropical sea at the time of the dinosaurs, with islands scattered around the time. The fine limestone formations of Soren Houfen contain fossils of the genus Macrognathida, as well as the delicate remains of fish and the remains of island-dwelling animals such as the early bird Archaeopteryx.

2. Flame Cliff.

The Flaming Cliffs of the Gobi Desert in Mongolia have preserved many animal fossils from the Late Cretaceous period, including Protoceratosaurus, Ovirapiraptor and Rapidsaurus. Since the discovery of fossils in the 20s of the 20th century, many world-famous dinosaur specimens have been excavated here.

3. Como Cliff.

In the 70s of the 19th century, scientists found many fossilized dinosaur bones in the Como Cliff in Wyoming, USA, most of which were sauropod bones. Scientists from the American Museum of Natural History have been digging here since the 90s of the 19th century and have found hundreds of specimens.

4. Moon Valley. Moon Valley is a barren canyon located in western Argentina where people learned about the existence of dinosaurs from fossils found here. Fossils found from Moon Valley include the Late Triassic beaked dragon group and other reptile groups, including the early theropod dinosaurs Chronoraptor and Herrerasaurus.

This remote site was discovered in the 50s of the 20th century, but it was not until the late 80s of the 20th century that people knew that it was very rich in fossils.

5, Lufeng. Dinosaur Mountain in Lufeng County, Yunnan Province, China, is a 10-square-kilometer area and is famous as the hometown of dinosaurs. In 1938, archaeologists discovered complete dinosaur fossils here for the first time, and dozens of dinosaur fossils have been excavated one after another.

After identification, there are 24 genera and more than 30 kinds of dinosaurs, which are the most primitive, oldest, richest and most complete vertebrate fossil groups in the world. Resources.

Chinese paleontologists have confirmed that the large-scale dinosaur fossil group excavated in Zhucheng in eastern China's Shandong Province this year is the largest dinosaur bone fossil group that has been discovered in the world.

This is the third large-scale excavation of dinosaur fossils by Chinese paleontologists and geologists in this area since the 60s of the last century. So far, at least 7,600 dinosaur fossils have been excavated and excavated at 15 dinosaur fossil sites. Experts say the number of fossils will continue to rise as excavations continue.

Zhucheng is located in the southeast of Shandong, between the Taiyi Mountains and the Jiaolai Plain, and is an important production area of Late Cretaceous dinosaur fossils represented by large duck-billed dinosaurs. In August 1964, the Shandong Survey Brigade of the Comprehensive Research Team of the Petroleum Bureau of the former Ministry of Geology of China discovered the dinosaur fossils here for the first time when they conducted an investigation in the Zhulai Basin. At the end of the 80s of the last century, the Ministry of Geology, the Institute of Vertebrate Paleontology and Paleoanthropology of the Chinese Academy of Sciences and Zhucheng City successively carried out scientific excavations of dinosaur fossils in Zhucheng and unearthed more than 10 dinosaur fossil skeletons.

In people's impressions, most of the living images of dinosaurs come from American Hollywood blockbusters or Japanese science fiction series, but in fact, China was once the "kingdom" of dinosaurs, and now it is also an important source of dinosaur fossils in the world.

I don't know, but I do know that the biggest dinosaur is **dragon!

Recently, the world's best-preserved dinosaur fossils were discovered in Germany. This is a fossilized skeleton of a carnivorous dinosaur, and its intact rate is 98%, which is the highest in the world.

German paleontologists found this fossil in Bavaria, and the discovery of intact dinosaurs shocked the whole of Germany, and even alarmed Germany**, they immediately issued a decree that no matter how it was studied, this dinosaur fossil could not leave Germany itself. According to paleontologists, this dinosaur belongs to the carnivorous type, which is considered a theropod suborder, and has similar characteristics to Tyrannosaurus rex. The current fossil is named Otto.

Otto was a juvenile dinosaur at 28 inches, and it has been well preserved to this day, and even some traces of hair and ** can be found on the fossilized skeleton. Paleontologists estimate that it must have lived 100 million years ago. On the 27th of this month, it will be unveiled at the Dinosaur Exhibition in Munich.

Oliver, the paleontologist who discovered it, said: "This is a truly brilliant discovery, so perfect that I can say for sure that it is the best ever in Europe, and it will stay in the Bavarian National Museum forever." "The best-preserved carnivorous dinosaur fossil in Europe is the skeleton of a Tyrannosaurus rex, but it is only 80% intact, a far cry from Otto.

That's why Oliver often uses the word extraordinary to describe Otto. He added: "Another perfect reason is its age, we rarely find young dinosaurs, which is extremely rare, and this is an amazing specimen."

Many experts believe that it died in the Jurassic when it was about 1 year old. Of course, scientists are also interested in its fur, and they are trying to find out whether dinosaurs have anything to do with modern birds.

The fossil was mined with a lot of painstaking work, in fact, German scientists found it on the bank of the river two years ago, but it is only now officially unearthed. They didn't even dare to make it public before they mined it, and Germany was afraid that such fossils would be preempted by archaeological teams from other countries. Now Otto has been regarded as a cultural heritage by Germany, and experts have analyzed that the ancient country must have flowed into the market for millions of dollars.