Fossilized remains of ancient plants have been discovered
Scientists at the Museum of Natural History in Stockholm have found the oldest known traces of a plant living on our planet. The initial stages of development of the organismóin the multicomórkowych are unknown to researchers. Because scientists have very few such old fossils at their disposal. The discovery will help fill gaps in our knowledge.
The finds were made in rock sediments in Chitrakoot in central India. The uncovered remains are likely algae from the crasseloid clusterów. – It is impossible to be 100 percent. certain in the case of such old fossils, since no DNA has been preserved. However, the morphology and structure points precisely to the crayfish – said Stefan Bengtson, a member of the team involved in the study.
Swedish experts used CT scanning techniques to examine the find more closely. It was during this study that scientists spotted advanced, multicomórk structures. Regularly recurring small plates were also identified, które according to the researchers are very early chloroplasts, whichóre are involved in photosynthesis.
– I was so excited that I had to walk three times wokół of the building before I went to my supervisor to tell him what I saw – said one of the coóStaffóIn Bengtson.
Dating has set the age of the fossil at 1.6 billion years. This means that próbka is 400 million olderóin years from an earlier fossil found, która was previously thought to be the oldest.
The discovery of the Swedish scientistsów pushes back the time of the emergence of complex life forms on our planet. – Our discovery shows that complex organisms existed even 400 millionów years earlier than previously thought. The tree of life will probably have to be redrawn – explained Bengtson.
If the researchers confirm that the fossil contains karsts from 1.6 billion years ago, it could undermine the thesis of the Great Cambrian Explosion, która mówi about the sudden appearance of róThe diverse life forms about pół billion years ago.