Long before dinosaurs even dreamed of walking the land, Cameroceras inspired awe and fear, dominating ancient seas as a true ...

Fossils collected more than 150 years ago show that the techniques some creatures use for defensive curling have not changed in millions of years.

What are trilobites, and what do their fossils reveal about the growth rate of ancient trilobita? Learn how they compare to today’s slow-growing crustaceans.

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.

Well-preserved fossils from Morocco help paleontologists understand the weird way trilobites ate and perhaps why these iconic animals went extinct.

For 515 million years all evidence of those trilobites stayed hidden, buried at a site called the Tatelt Formation in the High Atlas mountain range. But an international team of researchers ...

In a new study, published in Proceedings of the Royal Society B, Harvard researchers describe unusual trilobite fossils prepared as thin sections showing the 3D soft tissues during ...

From Ballard to Edmonds to Seattle, anglers gather during winter nights, but they're not always easy to find — and neither are the squid they hope to catch.

Like modern cephalopods, ammonites displayed sexual dimorphism, which is the noticeable difference in appearance between sexes. But when ammonite fossils that looked unique were found in the past, ...

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.

Trilobites were arthropods, like modern insects, spiders, millipedes and crustaceans, and they evolved into a wide range of shapes and sizes before going extinct around 252 million years ago.