<h1 class="pgc-h-arrow-right" data-track="1" > Guiyang Airport washroom surprised more than 400 million years ago fossils! </h1>
These days, the Longdongbao airport in Guiyang is on fire, and it is because of the fossil fire, because the restroom of the airport hides fossils, and it has a history of 439 million years. How did such an ancient fossil end up in an airport restroom?
Recently, Chen Shangbin, head of the Geology Department at China University of Mining and Technology, passed through Guiyang Longdongbao Airport and found fossils of paleontology on the washstand of the washroom. Chen Shangbin casually took a photo and passed it to the circle of friends, and then the photo went to Weibo to attract widespread attention, so what fossils are on the washstand?
Photo note: Fossils in the toilets of Guiyang Airport, pictures @Rainmonkey world
After the identification of Shen Shuzhong, an academician of the Chinese Academy of Sciences, it was judged that the fossils on the handwashing table of Guiyang Airport belonged to paraconchidium shiqianensis, which belonged to the virgianidae under the pentamerida in classification, which survived in the early Lingliu period 439 million years ago, and was a very common prehistoric marine life at that time.
Picture note: Ishizu shell shell, picture from the world of @Rainmonkey
Figure note: Five-room shell eyeline diagram, picture from the network
The plate containing the fossil shell of the imitation shell is likely to come from Zunyi Zheng'an, which is not very far from the airport, because there are many quarries there, and the plates produced by the quarry are precisely famous for being rich in the fossil shell of the shell, so the plate has a very vivid name in the stone market, that is, "sea shell flower". How could Guizhou, located inland, unearth fossils rich in marine life?
Photo note: The quarry in Zunyi, picture from the network
Illustration: The plate known as the "sea shell flower", the picture comes from the network
If we go back to the Silurian period, 439 million years ago, we will find that we can't see what the earth looks like today, when South China was located under a shallow sea and was inhabited by a large number of marine life. At that time, after the death of marine life, the wreckage would be deposited on the seabed, but the shallow seas of southern China at that time often encountered strong hurricanes. When a hurricane strikes, huge storm waves roll up the remains that were originally deposited on the ocean floor and carry them elsewhere. In this process, both living and dead shell shells will be smashed into pieces in violent storms and huge waves, and then deposited to the seabed in different layers of size and weight after the hurricane weakens, forming a dense shell layer, also known as the "corpse group".
Illustration: The Earth of the Silurian Period, when Southern China was a shallow sea, the picture comes from the Internet
Photo note: A corner of the shallow sea ecosystem in the Silurian period, picture from the internet
Calcium carbonate deposits containing "carcasses" formed rocks that we call "limestones", and after hundreds of millions of years of land uplift, the limestones emerged from the sea to become a karst landform common in South China today. When humans began to mine limestone, fossils of paleontology in the rock were found. Those with particularly good preservation, such as the horn stones in xiangxi, will be processed into paleontological fossil crafts for sale; and those with better preservation, such as Zunyi Zheng'an's shell shell fossils, will be polished into decorative plates, and the plates in Guiyang Airport are likely to come from here; the preservation of general appearance will be directly processed into floor tiles for outdoor ground laying...
Photo note: A fossil of trilobite from western Hunan Province, pictured from Apatosaurus minor
As you know, the fossil countertops in the restrooms at Guiyang Airport originally came from the early Silurian period 439 million years ago, and are likely to be the victims of a hurricane or even a tsunami. Because the fossils are preserved in a broken state, they cannot be repaired into high-value crafts, and can only be processed into ordinary plates for sale, and the price is not more expensive than other plates.
Paleontological fossils seem mysterious, in fact, they are all around us, if you pay attention to observation, it is likely to find the remains of hundreds of millions of years ago that are hidden around!
The content refers to the world of @Rainmonkey and the answers to related questions
Image / Network (Intrusion and Deletion)
Text / Jiang's Little Thief Dragon (Jiang Hong)
Typography / Jiang's Little Thief Dragon