Evidence for ammonite survival into the Paleogene era is solid, a new study confirms, indicating that these ancient mollusks were well positioned to inherit oceans now cleared of competitors. Yet for ...

The ammonoids, an extinct subclass of cephalopods, offer a remarkable window into the evolutionary innovations of marine life. Their coiled, chambered shells and intricate suture patterns record a ...

The origins of vivid colours within the gemstone ammolite — a rare type of brightly coloured fossilised ammonite shell — are reported in research published in Scientific Reports. The colours of ...