Archimedes bryozoan fossil. This is the spiral backbone of the bryozoan. Bryozoa are a phylum of aquatic invertebrate animal. This specimen was found in Lower Carboniferous limestone in Iowa,USA,and dates to 350-330 million years ago | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Natural History Museum, London |
Taille de l’image : | 4669 px × 3744 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |