Polished section of a petrified tree,showing growth rings,photographed in Arizona. Photo taken 1984 Photo taken 1983 at Orange Coast College,California | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Sanford, John |
Bildgröße: | 5197 px × 3485 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |