Paleontologists in England discovered the existence of a new marine species that roamed the Earth before the dinosaurs and ...

A 444-million-year-old fossil named "Sue" preserves internal organs of Keurbos susanae, raising questions about arthropod ...

Meet Keurbos susanae, the inside-out fossil named after the discoverer’s mom.

Paleontologists are marveling over a unique fossil of a specimen that pre-dated the dinosaurs, according to new research.

And yet her durable carapace, legs and head are missing—lost to decay over 440 million years ago. "We are now sure she was a ...

A professor has published details of a rare "inside-out, legless, headless wonder" fossil from 444 million years ago, which ...