The orthoceras fossils in this piece of black Moroccan limestone come from a species of extinct marine cephalopods known as orthocone nautiloids. They date from the Devonian Period,approximately 400 million years ago. They are ancestors of ammonites,squids,octopuses and cuttlefish | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Terry, Sheila |
Taille de l’image : | 3552 px × 4944 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |