Fossil is the oldest-known scorpion

558m-year-old fossils identified as oldest known animal, Fossils

Prehistoric Beast of the Week: Living Fossil: It Stings, Pinches and Glows!

ANCIENT AND EXTANT – THE HISTORY OF ARACHNIDS

David Attenborough gets a namesake: the oldest known relative of living animals, Science

Earliest Sea Scorpion Tracks on Land

Fossils - Grand Canyon National Park (U.S. National Park Service)

525-million-year-old fossil defies textbook explanation for brain evolution

Ancient Scorpion Had Feet, May Have Walked Out of Ocean

PPT - Scorpions PowerPoint Presentation, free download - ID:1265595

A new mid-Silurian aquatic scorpion—one step closer to land?

400 million-year-old scorpion fossil the size of a dog discovered in China

Earliest Sea Scorpion from China

Episode 156 – Eurypterids (Sea Scorpions) – The Common Descent Podcast