(CNN) — About half a billion years ago, a volcanic eruption near a shallow sea in what’s now Morocco preserved some of the most complete specimens ever found of buglike sea creatures called trilobites ...

Fossils unearthed at a slate quarry in northern Portugal include those of the largest known trilobites, as well as immense assemblages — some a thousand strong — that suggest the creatures exhibited ...

Buried beneath layers of volcanic ash for over half a billion years, a set of newly unearthed trilobite fossils from Morocco ...

Artistic reconstruction of two species of trilobite an instant before burial in a flow of volcanic ash 510 million years ago. Researchers have described some of the best-preserved three-dimensional ...

A team of researchers — including one from Texas State University in San Marcos — have discovered 10 new species of an extinct marine creature, a finding that scientists say could help piece together ...

For the past two years, scientists have been conducting research on what are believed to be the first-ever discovered trilobite eggs paired with a fossil of the segmented creature. For the past two ...

For millions of years, the land we now call the United States has been home to towering prehistoric beasts, strange sea creatures, and lush ancient forests that no longer exist. Evidence of this ...

Fossil trackways are simultaneously wonderful and frustrating things. They are preserved bits of prehistoric behavior, but, unless an animal actually dies and becomes preserved in its tracks, ...

The orderly collection of ancient arthropods suggests that complex social behavior goes way back in the history of life on Earth. By Becky Ferreira You probably don’t think twice when you queue up at ...