Researchers at Lund University and the Swedish Museum of Natural History discovered two plant fossils that had not destroyed nuclei and individual chromosomes 180 million years ago. Through the use of different microscopy techniques, X-rays, and geochemical analysis to study these preserved fossils, inspections showed that the plants were preserved at the instant that it began to rot. It was suddenly buried by the volcanic lava flow. Thanks to the sudden death of the ferns, the cells' photosensitive elements were preserved. Researchers have found nuclei, cell membranes, and even individual chromosomes. This structure is very rare in fossils.
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"Protection is happening very quickly, and some cells are even stored at different stages of cell division," said Vivi Vajda, professor of geology at Lund University. “This naturally makes us feel sure there is more to explore. It's not hard to imagine what is covered in the lava flow in Skane.†Prof. Vajda and two researchers at the Swedish Museum of Natural History Benjamin Bomfleur and Stephen McLoughlin Studies have found that this fern belongs to the family Asteraceae, royal fern. In modern times, royal ferns grew in the Swedish wild and were also a common garden plant. The representative of this family is very similar in appearance to the Jurassic fossils, indicating that only limited evolution has taken place over the millennia. Vajda discovered that the lava flow was about 180 million years by analyzing the pollen and spores preserved in these rocks. History. These results have improved the radiometric dating that was performed near the volcano. In addition, investigations revealed that a large number of spores of royal ferns and pollen of conifers were found in volcanic rocks. These diversity of vegetation proves that the volcano erupted and the climate is hot and humid.