Scientists have Discover Haul de Fossils Very Good in China


A remarkable find in the south of China gives more light beyond the mysterious lifestyles that have crawled our planet fifty years ago. In a meat bed beside the Danshui River, palaentologists have excavated about 30,000 fossils dating back to Cambrian 518 million years ago.

The newly discovered fossil bed, known as Lagerstätte, could also become an issue of the scale and significance of the Burgess era of the Cambrian.

The researchers have examined 4,351 examples of the epic search, identifying 101 mixed species and eight algae. About 53 per cent of these are completely new to science, which may help us understand more about the secret explosion of animal life on Earth.

Together, the form of life is called Qingjiang.

qingjiang softies(Fu et al., Science, 2019)

It is thought that during the Ediacarian period, which began 635 million years ago, multicultural life appeared. Then, 541 million years ago, it took to the Cambrian – and an event known as the Cambrian explosion.

This is just as it is – apparently that most of the large animal poles appeared on the fossil record over a period of some 25 million years in marine ecosystems around the world. In the end, these would be changing to create a rather diverse life. What a time to live!

But time is a time of brainbreak, resulting in a somewhat innocent recording of fossils, restricted to a few well-stocked beds well preserved throughout. the world.

The Burgess Shale musician is named above in Canada and the Maotianshan blood beds in Chengjiang in China, as well as shale beds in Sweden, Poland, the USA, Australia and t Greenland.

At the time of the Cambrian, these black beds formed a muddy seabed on the sea bed; ocean creatures died and fell into the sea bed, and they were buried with falling mud. Then the long, slow geological process of their strange bodies – heating and pushing hardening the mud to as an animal, was kept, but it did not add the fossils to it.

This process of retention is so amazing that he found detailed ideas of even body creatures for us to watch at, millions of years later.

"Most of the fossil places are going to keep the fine things, the hard things … t [but] palaeontology expert Joanna Wolfe of Harvard University, who was not involved in the survey, said: t National Geographic.

"These are the best of the best."

What makes this happen is that there are gaps in it. Peregrines, box shells, anemones, algae algae and sponges grow in abundance, where they are scarce or lost from other investments.

And they are much better preserved than the Burgess and Chengjiang deposits, without damaging the transformational processes that have affected the old fossils, and the weathering on the latter.

qingjiang creaturesSoft-bodied creatures of Qingjiang dagger. (Fu et al., Science, 209)

Indeed, the level of conservation is surprisingly even that of tides of seabirds and carcasses are easily found.

"This is the Qingjiang bite that is quite remarkable, and certainly deserves attention, with the way it displays details of forms, antennas or eyes to its members," said the geo- t Emma Hammarlund from Lund University Eos.

"The rocks are much lower than in Chengjiang and are not as cooked as Burgess Shale."

As the archive holds up with Chengjiang, the researchers believe that the differences between the two indicators indicate how the two ecosystems were created in environmentally friendly contexts. produced.

The investments were found in 2007, and the team has done four seasons of fieldwork during that time. There is still a lot of work to be done to survey and catalog the remaining fossils, and there is still scope for further fieldwork to be undertaken.

It is not known what remains there, preserved in the stone, but one thing certainly appears: this search means big things for our understanding of animal evolution.

The research was published Science.

Source link