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In Brazil, fossils with traces of the earliest form of multicellular life on Earth

An international team of researchers in collaboration with paleontologists from the University of Manchester discovered in the region of corumbá (Brazil) fossils with traces of life, whose age is about 500 million years.

These traces are tiny holes, done unknown to living organisms. The diameter of the holes is from about 50 to 600 microns. That is, it turns out that the diameter of the beings themselves are smaller and approximately equal to the thickness of a human hair.

Fossils date back to the so-called Evcarco-Cambrian transition about 541 million years ago. For comparison, dinosaurs lived in the Mesozoic era, from 230 to 65 million years ago. According to scientists, the age Evcarco-Cambrian transition is very important because that’s when there were many groups of animals, including the living.

Scientists believe that the holes in the fossil record did worms nematode, reminiscent of modern Ascaris, who lived in the sediment and moved in wave-like motions.

To find tiny fossils, scientists have used the technology for x-ray microtomography, which with the help of x-rays creates a virtual 3D model of the object.


Source — University of Manchester

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