Zhuji has found a large number of Ordovician paleontological fossils!
The Ordovician is the second epoch of the Paleozoic Era, beginning 500 million years ago and ending 440 million years ago. That is to say, at that time, even the dinosaur eggs had not yet appeared!
Fossils of animals from extinct marine groups have been found
First, how were the fossils found?
Industrial workers of the EPC project of Zhejiang Provincial Transportation Group's Hangzhou Ring Road West Multiplex Project found strange traces in the sedimentary rock of the subwoof of the subwoof when they carried out excavation operations in the subwoof, suspected of being fossils. ‘’
Subsequently, relevant experts also went to the site to conduct research and determined that there were a large number of Ordovician paleontological fossils here.
Moreover, the archaeologists found a fossil of an extinct marine group animal "penstone".
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The fossils of the "penstone" organism, because they are flattened into a carbonaceous film during the preservation process, much like the traces of pencil writing on the rock layer, are called "penstone".
It is reported that the bones secreted by the "penstone" insect body are called "penstone body". The "penstone body" is generally a few centimeters or tens of centimeters long in size, and the larger one can reach 70 centimeters or more. The "penstone" fossil excavated this time is more than ten centimeters long at the largest and is of medium size.
More than 400 million years ago, the dock was a sea
The strata formed during the Ordovician period are called the Ordovicians, located above the Cambrian period and below the Silurian.
The Ordovician period is one of the most widespread periods of historical Shanghai invasion, the shallow sea is widespread, and fossils are most common in trilobites, penstones, brachiopods, echinoderms, and nautiluses in molluscs.
The large and well-preserved fossils excavated at this time prove that this ordovician period is most likely a shallow sea.
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It is said that the excavated fossils have great scientific research value for the ancient geological structure and ecological research of Zhuji, and are currently in the preliminary excavation stage.