Thrombolites. These living fossils, which are 650 million years old, are formed by cyanobacteria that have calcified. Photographed at Flower's Cove, Newfoundland, Canada. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Gibbons, Bob |
Taille de l’image : | 3496 px × 5005 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |