Palaeontologists working in the north of the United States have revealed one of the fossil collections of fossils ever found, dating back to the giant asteroid day tied into a shallow sea. on the primordial Earth 66 million years ago.
Immediately after the effect of those asteroids, unimaginable flooding swept across the planet. The Earth was triggered by a severe concentration, and similar things were not felt before. Although the asteroid has now landed in Mexico, it was so devastating that the effects had been felt thousands of miles away, because of the turbulent rumors of the Earth.
Durable, hooked – tektitau fire holes and beads fell down on the soil before dust and soot clouded the atmosphere. The Sun had gone. As a result, it is thought that about 75 percent of all living creatures, and most of the dinosaurs, have disappeared.
The tektit had rained down on fish, frozen against the trees and beat the dinosaurs. Life quickly disappeared and bodies of the dead have settled in the soil, durable beads are still wrapped in their bones. Now these skeletons are priced from the Earth – and they reveal, for the first time, exactly what happened after the asteroid hit.
In a paper to be published in PNAS at 9 a. ET Monday, Robert A. DePalma and a team of palaeontologists detailed their huge emissions of fossils found in Hell Creek's geological formation spanning North Dakota, South Dakota, Wyoming and Montana. Together, a remarkable account by Douglas Preston appeared on 29 March at The New Yorker detailing DePalma's findings and seven years on site, the paleontologist having baptized "Tanis" after the ancient Egyptian city in Raiders of the Lost Ark.
To understand the importance of the findings at Tanis, it is important to understand the importance of the "Cretaceous-Paleogene (K-Pg)" boundary, a layer of rock buried within the Earth denoting the end of the Cretaceous period. and the beginning of the Paleogene – the age we live in today.
It is thought that that border was formed when the massive asteroid slammed into the Earth, giving a dark layer of dust within the Earth. For years, scientists have experienced the region looking for fossils but without discovering bones that rest close to the border. Without fossils close to the border, some scientists had suggested that the dinosaurs could have deteriorated long before the cataclysmic asteroid collision.
But in Hell Creek, DePalma has found fossils of fish, seeds, dinosaurs and, apparently, even mammal holes have been inserted under that dark layer, close to the border. .
The theory is that a huge surge of water, in the hours following the asteroid effect, rush into the area, flattening everything in its path. The tektitites that fell around the impact crater were swept thousands of kilometers to the north and were placed in fish gills found on the site. The findings provide breathtaking new evidence of how the Earth responded in the moments after the planet's brush.
"We solve the question of whether dinosaurs have disappeared at that exact level or whether they had deteriorated from the front," said Jan Smit, a palaeontologist and co-author of the paper, at the New Yorker. "And this is the first time we see direct victims."
Eventually, the toothed cemetery gives a glimpse of the day the Earth was shaking – and possibly the dinosaurs the last day wandering the Earth.