Its diet likely included trilobites, smaller cephalopods, and even early armored fish. Using its tentacles, Cameroceras could quickly seize struggling animals, crush their shells, and consume them ...

The Ordovician-Silurian Extinction Event wiped out 86% of marine species, including many kinds of trilobites and cephalopods. As you can tell from the name, ...

Huge, cone-shelled cephalopods and massive trilobites didn’t evolve because of simple causes such as an abundance of oceanic oxygen or dips in ocean temperature.

Researchers say they have found the earliest known evidence of sexual combat in the form of a trident-headed trilobite that scuttled the seafloor 400 million years ago.

A volcanic eruption in what’s now Morocco preserved ancient trilobite specimens in nearly pristine condition about half a billion years ago, according to a new study.

"These trilobites were scavengers on the seafloor, and they would have been preyed upon by fish or cephalopods from above," he said.

For about 300 million years, they lived on the floors of oceans on this planet called Earth. They were the trilobites, lowly crustaceans that scavenged the sea bottom for scraps of food.Their ...

The seas were filled with trilobites for nearly 300 million years starting in the Cambrian Period, some 520 million years ago. During their time on Earth, which lasted much longer than the ...

Researchers say they have found the earliest known evidence of sexual combat in the form of a trident-headed trilobite that scuttled the seafloor 400 million years ago.