Washington (AFP) scientists in the US say they have discovered the fossilized remains of a mass of creatures that died a few minutes after a huge asteroid hit 66 million years ago. The fate of the dinosaurs was sealed with it. In a paper to be released on Monday, a team of paleontologists based at the University of Kansas stated that they had found a "mother guarding of exquisitely preserved animal and fish fossils" in today's North Dakota. Mexico was the most catastrophic event that ever happened on earth. 75 percent of the planet's plant and animal species have been eradicated, the dinosaurs cleared and human ascent paved.
At Tanis' location in the Hell Creek Formation in North Dakota, the wave left the waves angled mass of freshwater fish, terrestrial animals, trees, branches, tree trunks, marine ammonites, and other marine creatures, "said Robert DePalma, the lead author of the report.
Some of the fish fossils were linked as "ejecta" With the Chicxulub event indicating that seismic waves arrived in North Dakota in just a few minutes, he said
"Sedimentation took place so quickly, that everything is conserved in three dimensions – they are not destroyed, "said co-author David Burnham.
" It's like an avalanche that breaks down almost like a liquid and then drops off like concrete. They were killed quite suddenly because of the violence of this water. We have a fish that hit a tree and was half broken. "
The fossils in Tanis include some believed to have been several newly identified fish species, and others that were" the best examples of their kind, "said DePalma, a student and curator of the Palm Beach Museum of Natural History in Florida.
"We are looking at snapshots of one of the most remarkable impact events in Earth's history. There is no such record anywhere else, "he said.
" And this special event is bound to us all – to every mammal on earth. Because here we essentially inherited the planet. Nothing was the same after the impact. It became a planet of mammals and not a planet of dinosaurs.
The article is to be published in the Proceedings of the Academy of Natural Sciences.