LOCUST GROVE, Ohio — During a recent day of digging along stream banks, Tom Johnson turned up dozens of trilobite pieces. He squatted for hours, quarrying layers of limestone and shale that had formed ...

If you've ever visited the fossil gallery of a natural history museum—or its gift shop, for that matter—you've probably seen the armored body remains (or exoskeletons) of an extinct group of animals ...

The “king” of the trilobites was snacking on whatever it could eat some 514 million years ago in the Cambrian era, even shelled creatures of its own species. By Rebecca Dzombak See more of our ...

One of the neatest parts of my job is cataloging and caring for scientifically interesting specimens. Science is based on evidence, and, for geologists, the evidence is in the rocks. If one ...

VANCOUVER — Some trilobites scurrying across the seafloor around 500 million years ago probably sported two-lane digestive tracks, new research shows. Michael Rutana of Ohio State University ...

A fossil bed in the High Atlas Mountains of Morocco is allowing new insights into the anatomies of arthropods that lived a half-billion years ago. By Jack Tamisiea Jack Tamisiea has previously ...

Previous studies place the earliest cannibalism about 450 million years ago in the Late Ordovician period. But a study published last month in the journal Palaeogeography, Palaeoclimatology, ...