May 27, 2022

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Asteroid strip found extinguishing dinosaurs; Understand

A new discovery suggests that a small fragment of the asteroid that collided with Earth 66 million years ago may have been discovered in the United States. Researchers believe that the catastrophic impact of the rock may have led to the death of dinosaurs and changed the course of the evolutionary history of life on the planet.

Remains of the asteroid have been identified and preserved at an archeological site in the Hell Creek system in the state of North Dakota. Many of the fossils found at the site were animals that died during a fall shock, namely a fish that sucked up debris, a rock-cut tortoise and a dinosaur’s foot.

According to CNN, the scientific novelty is featured in the documentary “Dinosaur Apocalypse” shown on PBS and presented by nature enthusiast David Attenborough and archaeologist Robert Dipalma.

Radical changes

Dipalma, a researcher at the University of Manchester in the United Kingdom and an adjunct professor of earth sciences at the Atlantic University of Florida, has long worked at the Danish Archaeological Site. Based on his knowledge of the geological conditions there, he claims that the deserts of the United States were barren after the asteroid struck.

During the Cretaceous, the American Midwest was a swamp and had abundant water resources, which then disappeared. This area now stretched from the Gulf of Mexico to Canada. With these findings, researchers may have rare evidence of what led to the end of the age of the dinosaurs.

Dinosaur foot fossil found at the site

Image: Revelation

The site contains thousands of well-preserved fish fossils, which, according to Dipalma, may have been buried alive by displaced sediment when a large aquifer was triggered immediately after the massive asteroid fell into the ocean.

“Evidence after evidence began to accumulate and change the story. This is the progress of clues like the Sherlock Holmes investigation,” Dipalma said. “This knowledge helps to understand how things developed after the impact, and it helps to obtain such rich evidence for scientific investigation.”

New tracks

Most glass impact spheres that first revealed asteroid impact fingerprints in Diploma have been preserved as clay as a result of geological processes for millions of years. However, Dipalma and his collaborators found some rounds of wood resin on the surface of a trunk, and they were preserved in amber.

“In this amber, we found many spheres frozen over time because an insect in the amber is properly protected. When these pellets enter the amber, water cannot get into them and they are properly protected,” he said.

In addition, the researcher drew attention to the exceptionally well-preserved dinosaur leg, with skin found at the Danis site. The limb is thought to belong to the dinosaur Thessalosaurus, a small plant that may have died the day the asteroid struck. The protection of soft tissues, such as skin, means that your body does not have time to decompose before being buried in the sediment.

“The two most believable scenes here are whether he died of shock or he died instantly, but very close to the moment of the catastrophic event, he did not really have time to realize what was happening,” the expert said. Explained.

Surveys in North American regions that have seen the Danish base and asteroid fragments fall, this chapter may provide information on what caused the mass extinction of dinosaurs and other prehistoric life forms, and how this phenomenon later emerged. For Diploma, the scope of this information will help us think about the current climate crisis.

“The fossil record provides a window into the details of a global threat and the Earth’s ecosystem’s reaction to that threat,” he explained. “It brings a vision of the past and allows us to apply it to today’s environment and the environmental crisis.”

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