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 ...

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 ...

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 Cannibalism is common ...

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 ...

Extinct trilobites called Walliserops trifurcatus may have been among the first creatures on Earth to engage in sexual combat, a new study finds. Public Domain At the bottom of the ocean 400 million ...

We know a great deal about the diversity, lifestyles and evolution of these iconic invertebrate fossils. More than 22,000 species of trilobite have been named. This is largely because the trilobite ...

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 ...

Pristine trilobite fossils have been unexpectedly found preserved by volcanic ash in Morocco. Palaeontologists previously thought fossils could not occur in volcanic rock. The palaeontology world has ...