![]() Some of the fish fossils were found to have inhaled "ejecta" associated with the Chicxulub event, suggesting seismic surges reached North Dakota within "tens of minutes," he said. Researchers believe the impact set off fast-moving, seismic surges that triggered a sudden, massive torrent of water and debris from an arm of an inland sea known as the Western Interior Seaway.Īt the Tanis site in North Dakota's Hell Creek Formation, the surge left "a tangled mass of freshwater fish, terrestrial vertebrates, trees, branches, logs, marine ammonites and other marine creatures," according to Robert DePalma, the report's lead author. The asteroid's impact in what is now Mexico was the most cataclysmic event ever known to befall Earth, eradicating 75 percent of the planet's animal and plant species, extinguishing the dinosaurs and paving the way for the rise of humans. In a paper to be published Monday, a team of paleontologists headquartered at the University of Kansas say they found a "mother lode of exquisitely preserved animal and fish fossils" in what is now North Dakota. ![]() ![]() Scientists in the US say they have discovered the fossilized remains of a mass of creatures that died minutes after a huge asteroid slammed into the Earth 66 million years ago, sealing the fate of the dinosaurs. ![]()
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