Fossil diatoms. Coloured scanning electron micrograph (SEM) of fossilised diatoms,single- celled planktonic algae. The diatoms create a shell (frustule) of silica around themselves for protection and support,which is readily fossilised. These diatoms are from the Miocene epoch,around 23 to 5 million years ago. These diatoms were found in Maryland,USA | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Gschmeissner, Steve |
Taille de l’image : | 4488 px × 3939 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |