Researchers have discovered the world’s oldest insect recorded in the world, 425 million years old, and the remains were discovered on the Scottish island of Kerera and indicate that bugs and plants evolved much faster than previously thought, and after analyzing the fossil insect, the team decided that ancient creatures left the lakes to live in the systems Ecological complex forests in only 40 million years.
Researchers used a technique to determine that molybden is 75 million years younger than previous estimates by extracting zircon, a microscopic mineral required to accurately determine the history of fossils, said Michael Brookfield, associate researcher at the Jackson College of Earth Sciences at the University of Texas Austin and an associate professor at the University of Massachusetts Boston. From these young guys to the very complex forest communities, and in the scheme of things, it didn’t take long. “
“There appears to be rapid radiation from the development of these mountain valleys to the lowlands, and then all over the world after that,” Brookfield, who led the study, worked with co-authors Elizabeth Katlous, professor of geological sciences at Jackson School, and Stephanie Suarez, a PhD student at the University of Houston, together made improvements to the fossil dating technique used in the study, according to the British newspaper “Daily Mail”.
After the analysis, the team determined that the fossil molybdium was 425 million years old, or about 75 million years younger than the age in which other scientists estimated that the older molybden uses a technique known as the dating molecular clock, which depends on the rate of the DNA mutation.
Although it is certainly possible that there are older fossils from both insects and plants, Brookfield said that the fact that they were not found – even in sediments known to preserve microscopic fossils of this era – could indicate that ancient fossils and plant fossils that have Already the earliest samples have been discovered.
If this theory is correct, experts can determine that each of the insects and plants evolved much more quickly than the chronology indicated by the molecular clock, and previous work dated insect deposits to only 20 million years after excavation, and by 40 million years later, there is evidence of the existence of Prosperous forest communities full of spiders, insects and tall trees.
Given its potential evolutionary importance, Brookfield said, he was surprised that this study was the first to address the era of the old millennium, while Suarez said that one of the reasons may be the difficulty of extracting zircon – a microscopic mineral necessary for the history of fossils accurately – from the gray rock deposits in which preserved Fossils.
It improved the technique by separating the zircon from the sediments, and once the zircon was released from the surrounding rocks, the team was able to retrieve it using a pin affixed to the tip of a pencil – a process researchers said “it involves eagle-eye hunting.”
“This kind of work trained me on the work that I do here in Houston … It is a delicate work,” Suarez said, “and I used the technique to find that a different Milibide specimen, believed to be the oldest insect specimen at the time, was about 14 million years younger than the estimates – It is the discovery of its inventory from the title of the earliest insect, and using the same technique, this study passes discrimination to a new specimen.