Fossil trilobites are very ancient,now extinct organisms that lived from the early Cambrian,over 500 million years ago,well into the Permian period,some 250 million years ago. They were hard shelled,bottom-dwelling sea organisms. The specimen in this photo,Asaphus punctatus,is a genus that lived during the Ordovician period in Scandinavia and northwest Russian realms. It is from Vipovitsy,St Petersburg,Russia and its overall length is 85 mm | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wiersma, Dirk |
Taille de l’image : | 5616 px × 3744 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |