Bivalve mollusc (Aviculopecten planoradiatus) fossils. Bivalves are shelled creatures and first appeared in the middle Cambrian,some 520 million years ago,they are still common in today's oceans | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Natural History Museum, London |
Taille de l’image : | 4880 px × 3581 px |
Model Release : | Non requis |
Restrictions : | - |