Brachiopod fossil (Orbiculoidea keokuk) from the Mississippian Period,Kentucky. The blue color is from calcium phosphate. 2.5 cm long | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Schneider, Mark A. |
Bildgröße: | 5116 px × 3418 px |
Modell-Rechte: | nicht erforderlich |
Restrictions: |
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