A QUARTER of a century ago, when first I began to study geology, it appeared to me that a predominance was given to the more recent rocks, such as the Pleistocene, Miocene, Eocene, Cretaceous ...

Two underwater sea lilies were eaten and regurgitated around 66 million years ago. They were preserved as fossilized vomit.

Sixty-six million years ago, at the end of the Cretaceous Period, an asteroid impact near the Yucatán Peninsula of Mexico ...

In the Cretaceous period, a shark or another kind of fish found sea lilies less than digestible. What you might expect ...

Explore the age of the dinosaurs. Discover what the prehistoric world was like and how it changed between when dinosaurs first appeared and the mass extinction at the end of the Cretaceous Period. Non ...

Sixty-six million years ago, at the end of the Cretaceous Period, an asteroid impact near ... Texas at Austin and several colleagues. At that time, it was proposed as an early member of modern ...

Modern oceans, for comparison, max out at trophic level five or six, represented by apex predators like orcas, sperm whales, and great white sharks.

Researchers say the new findings provide insight into predator-prey dynamics in the region during the Cretaceous period and mark ... this happened the second time,' which is not a one off." ...

Sixty-six million years ago, at the end of the Cretaceous Period, an asteroid impact near ... that lived in Antarctica at around the same time Tyrannosaurus rex dominated North America.The study ...

That was life - and death - in the Cretaceous Period in the Canadian province of ... "There is no sign of healing, so the wound either happened at the time of death during an attack or after ...

Near the end of the age of dinosaurs, a bird resembling today's loons and grebes dove for fish and other prey in the perilous ...