Thrombolites. These living fossils, which are 650 million years old, are formed by cyanobacteria that have calcified. Photographed at Flower's Cove, Newfoundland, Canada. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Gibbons, Bob |
Bildgröße: | 5175 px × 3450 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |