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 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Terry, Sheila |
Bildgröße: | 3552 px × 4944 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |