Light micrograph of a rock thin section of Gunflint cherts from Ontario,Canada,showing fossil remains of the earliest life forms yet found,dating from two billion years ago. The sample includes a mixture of organic detritus,filaments resembling the modern day filamentous blue green algae,colonies of algae (spikelets) & spheroids associated with current coccoid blue green algae. These primitive plants gained energy through photosynthesis,releasing free oxygen into the environment as a by product. This had far reaching consequences for the subsequent history of the environment. Mag:X128 (35mm size) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Stammers, Sinclair |
Bildgröße: | 4648 px × 3174 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |