Orthoceras

Showing 1–28 of 41 results

Showing 1–28 of 41 results

Orthoceras, meaning “Straight Horn”, was a nautiloid cephalopod that lived more than 400 million years ago. Its name refers to the characteristic long, straight, conical shell these marine animals possessed. The soft body lived in the last open-ended segment at the large end of the conical shell, the preserved fossilised shell is all that remains of this ancestor of our modern-day squid.