Ammonite
Everything about ammonites: shell shape, suture patterns, size range, 340-million-year fossil record, closest living relatives, the K-Pg extinction that killed them, and the cultural legends that grew up around their spiral shells.
May 2025
March 2025
Cameroceras
Everything about Cameroceras: the giant Ordovician nautiloid with a straight conical shell up to six metres long, apex predator of 470-million-year-old seas, its role in end-Ordovician extinction, anatomy, diet, and why it may be the largest mollusc ever.