Geisenoceras Fossil

Geisenoceras is a genus of extinct cephalopods that lived during the Devonian period, approximately 416 to 359 million years ago. These cephalopods were part of the nautiloid group, which includes modern-day nautilus, as well as numerous extinct species.

Geisenoceras fossils, along with other nautiloids, play a significant role in understanding ancient marine ecosystems and the evolution of cephalopods. By studying their morphology, distribution, and ecology, scientists can gain insights into the biodiversity and environmental conditions of the Devonian period.