Fossil of Xenacanthus sp. , a genus of freshwater shark that lived worldwide from the late Devonian well up to the end of the Triassic period. This specimen is from lower Permian deposits in the Saar-Nahe Basin of southwest Germany. Actual length is some 600 mm from nose to tail. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wiersma, Dirk |
Taille de l’image : | 4826 px × 3409 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |