Tag Archives: Hell Creek Formation

If Triceratops had a metal-headed cousin, it would be this dinosaur

Editor’s Note: A version of this story appeared in CNN’s Wonder Theory science newsletter. To get it in your inbox, Sign up for free here. About 67 million years ago, two dinosaurs faced off in a showdown in what is now Montana before being buried together in a single grave. It is not clear which… Read More »

Hiking family discovers rare T. rex fossil

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific advancements and more. When a father, his two sons, and their cousins ​​went for a walk in the Badlands of North Dakota in 2022, they found what looked like a dinosaur leg sticking out of a rock. Liam… Read More »

Newly identified ‘Hell Chicken’ species suggests dinosaurs weren’t headed for extinction before deadly asteroid impact

Were dinosaurs already on the brink of extinction when an asteroid hit Earth 66 million years ago, ending the Cretaceous, the geological period that began about 145 million years ago? This is a question that has been bothering paleontologists like us for more than 40 years. In the late 1970s, debate arose as to whether… Read More »