Ancient Hell Fish Killed by Dinosaur Asteroid Discovered in North Dakota Published Oct 13, 2022 at 5:59 AM EDT Updated Oct 13, 2022 at 10:03 AM EDT By Ed Browne Reporter ...

Artist’s depiction of Eoneophron infernalis (top left), MOR 752 (bottom left), and Anzu wyliei (right) in the Hell Creek Formation. Illustration by Zubin Erik Dutta. Funding: Funding for ...

Of all western North America’s fossiliferous lands, the Hell Creek Formation is among the richest boneyards. The 68-66 million year old exposures that stretch from Wyoming through Montana and ...

SIOUX FALLS, S.D. — Tyrannosaurus rex may have been known as the big guy around the Hell Creek Formation 66 million years ago, but a newly discovered species of raptor would have roamed the ...

A Triceratops may have been the last dinosaur standing, according to a new study that determined a fossil from Montana's Hell Creek Formation is "the youngest dinosaur known to science." ...