Illustration of a pair of stethacanthus,sharks that lived during the late Devonian and Carboniferous eras (370-345 million years ago); the male had an unusual dorsal fin shaped like an anvil or iron,covered with spiny denticles,toothlike projections,and a corresponding patch of denticles on top of his head | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Ellis, Richard |
Taille de l’image : | 3859 px × 2550 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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