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This new fossil will be a key witness to the evolution of the first animals.

Fossils discovered in Australia reveal what the first animals to inhabit the earth looked like. They also show the very early appearance of certain functions or genes, which played an important role in later evolution.

Edikaran. This name means something to you. Of all the geologic periods, this one is truly special, as it marks an important turning point in the history of life.

Note that this was during the Ediacaran period (between 630 and 542 million years ago).))that the first animals will appear. Previously populated only by unicellular organisms, the world’s oceans would gradually see the development of more complex multicellular organisms, capable of voluntary movement. While life had been evolving in the simplest forms of plants for over 3 billion years, the Ediacaran would usher in the most rapid evolution and diversification of the living world. It is therefore very important to understand what happened during this unique period in Earth’s history. Except that the testimonies that allow it to be documented are rare, very rare.

The earliest example of left-right balance

So each new discovery is usually an event. And that’s the case with this one that just appeared in the magazine. Evolution and Development. During excavations in Australia, i Nilpina Ediacara National Parka team of BiologistsBiologists Discovered a 555 million year old fossil belonging to a previously unknown animal. Deployed Simpson’s questionit comes in the form of a flattened bag no bigger than the palm of the hand. But what makes this discovery so important is that the fossil shows a left-right asymmetry. Question It would therefore be the earliest organism to exhibit this type of development, which proved fundamental to the rest of evolution. It also seems that this animal can move downwards. This would be the earliest evidence of such behavior.

So it is likely. Question crawls down to feed on carpets of algae and BacteriaBacteria Of which we find fossils today.

Studying these types of fossils is extremely enriching and allows us to better understand how life evolved into what it is today. It also shows us how diverse ancient ecosystems were half a billion years ago.

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