Qilu Network June 19 news "Jurassic World 2" is being screened, the violent dinosaurs, running human beings give people an audiovisual shock, the imperial velociraptor in the film is shocking. Coinciding with the movie, on June 18, experts and scholars from the Sino-US and Australian Dinosaur Footprint Expedition team announced that a large dinosaur footprint site had been found in Tancheng, Shandong Province, with more than 300 dinosaur footprints, which were traces of dinosaur life 100 million years ago.
The Jurassic conjecture confirms! Shandong discovered "social dinosaur"
The "wolf pack" characteristics of the velociraptor that appeared in Jurassic World 2 were confirmed in this discovery, the velociraptor belongs to the small dinosaur class, and in this batch of footprints, there are more than 70 four parallel small dinosaur footprints, which confirms the social characteristics of the small dinosaur, in addition, this is also the world's first case of small group dinosaur footprints.
Discover more than 300 dinosaur footprints
According to reports, the footprint was found in Tancheng County, Shandong Province, known as the Lizhuang Dinosaur Footprint Fossil Group. The terrain conditions are good, across the Linshu, Tancheng, Donghai, Xinyi four counties of Maling Mountain, the altitude is not high, but like a galloping horse, the dinosaur era strata are better exposed, until the Linshu Mountain, in the low hills without mountains, the Quaternary cultivated soil layer can be seen tens of centimeters below the Cretaceous rock formation.
In 2015, Tang Yonggang, a well-known dinosaur hunter in China, and Liu Yang, a fossil enthusiast, accidentally discovered dense dinosaur footprints in the area. In order to study these footprints, in April 2017, led by Associate Professor Xing Lida of China University of Geosciences (Beijing), Professor Wang Xiaoli, Dr. Zhang Junqiang, Dr. Guo Ying and other scholars from the Institute of Paleontology of Linyi University inspected the footprints.
Generally speaking, there are only one or two types of dinosaur footprints in a dinosaur footprint site, but the dinosaur footprints of Lizhuang footprints include three-toed medium-sized theropod footprints, small theropod footprints, micro-small theropod footprints, and bi-toed small dinosaur footprints left by carnivorous dinosaurs; plant-feeding narrow-pitched sauropod footprints, wide-pitched sauropod footprints, and bird footprints, with a total of more than 300 footprints.
See where "dinosaur footprints" have also appeared in Shandong
Dinosaur footprint fossil groups "appeared" in Junan County, Shandong Province
This is the fossil remains of multiple dinosaur footprints found on a sandstone rock formation of less than 10 square meters on the west ridge of Houzuoshan Village in Junan County
According to the reporter's understanding, in 2003, a group of dinosaur footprint fossils was also found in Junan County, Shandong Province, which was identified by paleontologists of the Chinese Academy of Sciences, and its number and type were rare in China. Experts from the Institute of Vertebrate Paleontology and Paleoanthropology of the Chinese Academy of Sciences believe that this is a dinosaur footprint fossil in the Cretaceous sand mudstone after field investigation.
Shandong Linshu discovered a huge Cretaceous "dinosaur park"
Paleontologists in China, the United States, Switzerland and other countries recently announced that they have found a huge group of dinosaur footprint fauna in the Lower Cretaceous strata of Linshu. The site preserves a wealth of footprint fossils such as large sauropods, medium tetrapods, two theropods, and psittaciosaurs, which is of great significance for the study of the evolution and migration of dinosaurs in the early Cretaceous Period. The expedition found rare chirosaurus footprints, and only 8 of the thousands of footprint fossil sites around the world have been found. At the same time, the footprints of cute prehistoric small dinosaurs such as Psittacosaurus were discovered. This batch of newly discovered footprints greatly compensates for the lack of dinosaur fossils in the corresponding strata.
These "dinosaur footprints" have been found in Zhucheng, Shandong
At the end of 1964, after a group of geologists stumbled upon dinosaur fossils, Zhucheng began to stage one myth after another. The world's largest dinosaur fossil burial site, the world's largest exposed dinosaur fossil group, the world's largest dinosaur group cluster, etc., Zhucheng has gradually been crowned with a number of "most" titles, the world's name shocked the world.
In 1964, the "giant Shandong Dragon" found in Zhucheng Dinosaur Stream, Shandong Province, was 8 meters high and 15 meters long, which was the largest duck-billed dragon in the world at that time, and also the tallest individual among ornithischian dinosaurs; in 1988, the "Giant Zhucheng Dragon" discovered by Zhucheng Dinosaur Stream was 9.1 meters high and 16.6 meters long, creating the Guinness Book of Records for the world's tallest duck-billed dragon; in 2008, the "Giant Huaxia Dragon" found in Zangjiazhuang in Zhucheng was 11.3 meters high and 18.7 meters long, breaking the Guinness World Guinness Record. Zhucheng duck-billed dragon has a huge body, and new discoveries have repeatedly set world records, and it is a veritable "big Mac" among ornithischian dinosaurs.
Infographic
In October 2009, at the dinosaur fossil excavation site located in the north of Kugou Village, Longdu Street, Zhucheng City, the staff was excavating.
In October 2009, a complete dinosaur fossil skeleton of an unknown genus was transported from Zhucheng to the Institute of Paleoanthropology and Vertebrate Paleontology of the Chinese Academy of Sciences in Beijing for further research, and Professor Xu Xing, a famous dinosaur expert of the Chinese Academy of Sciences who participated in the excavation work, initially believed that this was most likely a new dinosaur genus, which was another major discovery since the third scientific excavation of Zhucheng Dinosaur Stream in January 2008. The reporter learned that the dinosaur fossil excavation work has lasted for nearly two years, Li Dunjing, director of the Zhucheng Dinosaur Museum, told reporters that the excavation process not only surprised the world's largest duck-billed dragon fossil, but also found the first fossil of horned dragons.
The picture shows the fossil of the dinosaur's 180-degree turn
Two rows of fossil dinosaur footprints about 30 centimeters in diameter form a 180-degree arc on the rock wall of the Early Cretaceous period, a wonderful arc with a total of 28 dinosaur footprints. In 2015, this group of dinosaur footprint fossils found in Tangdi Gezhuang, Jiayue Town, Zhucheng City, Shandong Province, presented a 180-degree semicircular shape, which just preserved the whole process of dinosaur turning, which is the first case in the world and is called "dinosaur footprint bend fossil" by dinosaur experts. Experts said that the discovery has important scientific research value for in-depth study of the movement mode, living habits and living environment of dinosaurs in the Cretaceous period.
These "dinosaur footprints" have been found in Laiyang, Shandong
Dinosaur egg fossils found in Laiyang
The dinosaur fossils in the hall of laiyang dinosaur museum are particularly eye-catching, and on the left side of the picture is "spinosaur"
Some dinosaur bone fossils are wrapped up and protected for scientific research
Laiyang city is known as the "hometown of Chinese dinosaurs", and is one of the first important sites for geological paleontologists in China to discover fossils of ancient vertebrates such as dinosaurs, dinosaur eggs, and pterosaurs.
Laiyang is the place where the first dragon of New China, the spiny-nosed Qingdao dragon, was found. Laiyang also developed a very peculiar plain dinosaur canyon group, laiyang is also the birthplace of the Chinese vertebrate paleontology society. Laiyang is truly a "Cretaceous Park". Many of the dinosaur types discovered in Laiyang are dinosaur stars from the "Jurassic Park" to "Jurassic World" series of movies.
Laiyang paleontological fossils have a long history of discovery, with three major discoveries. The first dinosaur discovery was in 1922-1930. From 1922 to 1923, Tan Xiyu collected dinosaur skeleton fossils in the Cretaceous Wang group and the Cretaceous Qingshan group under Qingshan, and in the Lower Cretaceous Laiyang group in Beibozi and other places, which is the earliest dinosaur and insect fossils discovered by Chinese scholars. The discovery of dinosaurs and other paleontological fossils in Laiyang has opened the prelude to the study of dinosaur and insect fossils in China.
The second dinosaur discovery in Laiyang was in 1950-1958. In 1950, teachers and students of the Department of Geology and Mineralogy of Shandong University discovered dinosaur and dinosaur egg fossils at The General Ding and Jingangkou during their field internship in Laiyang. In 1951, Zhou Mingzhen first reported the fossil of dinosaur eggs in Laiyang, which was the earliest dinosaur egg discovered by Chinese scholars. In 1951, Yang Zhongjian of the Institute of Paleovertebrates of the Chinese Academy of Sciences led a scientific expedition team composed of Liu Dongsheng and Wang Cunyi to excavate and collect a number of dinosaur and dinosaur egg fossils in the Jingangkou excavation, and in 1958 Yang Zhongjian published the famous dinosaur research work "Shandong Laiyang Dinosaur Fossil", which named the spiny-nosed Qingdao dragon in detail, and also named the duck-billed dragon Of the Kongokou Tan family, the theropod-like Gan's Sichuan dragon and the broken Diamond Mouth Dragon, as well as the Horned Dragon and other Chinese parrot-billed dragons and others that may belong to the Stegosaurus species. Dinosaur fossils such as carnivorous dragons and sauropods were reported for the first time, and the skeletons of pterosaurs found in Laiyang were reported for the first time, which is also the earliest pterosaur fossil found in China.
In the following 30 years, some sporadic paleontological fossils have been found in Laiyang, including Laiyang Tan's Dragon, Laterite Cliff Small Swollen Head Dragon, Yang's Parrot-billed Dragon, Broad-edged Northern Mountain Turtle, as well as a variety of dinosaur egg types and insect fossils
Explanation of terms
What are dinosaur footprints?
After a long evolutionary evolution and instantaneous turmoil, the dinosaurs, the original overlord of the earth, have disappeared from the earth, but the evidence of their existence is preserved in the form of fossils.
Zhang Jianping, a professor of stratigraphic paleontology at China University of Geosciences, said that fossils related to dinosaurs mainly include dinosaur bones, dinosaur footprints, dinosaur eggs and dinosaur feces fossils. "Dinosaur footprints can only be preserved on the ground where the temperature, viscosity and particle size of the sediment are appropriate."
These footprints can help scientists understand the habits of dinosaurs. Zhang Jianping believes that dinosaur footprints can provide information such as the type, size, number and relative abundance of dinosaurs, walking direction and speed. In addition, dinosaur footprints can also provide information such as dinosaur foot morphology and number of toes, and in some cases, dinosaur footprints also retain skin footprints, providing valuable information for the study of dinosaur skin structure and dinosaur restoration.
(Lightning News Editor Gao Yanan Chai Huijuan Comprehensive Arrangement)