This ancient cephalopod, often described as a “living fossil,” was sighted in late ... one of the oldest surviving members of the nautiloid family, a group of cephalopods that also includes ...

Researchers aboard the E/V Nautilus recently discovered four rare Palau nautiluses, ancient cephalopods also known as "living fossils," in the deep waters near the German Channel. The sighting, ...

Ammonites were shelled cephalopods that died out about 66 million years ago. Fossils of them are found all around the ... octopuses and cuttlefishes), nautiloids (the nautiluses) and ammonites.