Geisenoceras is an extinct cephalopod, similar to a squid with a long, pointed shell that lived during the Devonian period around 400 million years ago.
Fossils of Geisonoceras are found in marine strata from the Ordovician to the Devonian, and range between about 460.9 to 383.7 million years ago!
size: About 2”
* Images of the specimens are representative of what you will receive.