Prodacrodus shark teeth fossils, SEM
Bildnummer 12324797
| Prodacrodus shark teeth fossils. Coloured scanning electron micrograph (SEM). Fossilised teeth from an extinct shark prodacrodus from the late devonian and early carboniferous period. Prodactus belonged to the class chondrichthian a diverse group of cartilaginous fishes that includes the sharks, skates and rays. Few fossilised remains of prehistoric sharks exist because their skeletons were formed of cartilage, a less durable material than bone. Shark teeth are made of a bone-like enamel-coated substance that is more readily fossilised. Some of the ancient sharks reached enormous sizes and had teeth reaching over 17 centimetres in length. Magnification: x80 at 10cm wide. | |
| Lizenzart: | Lizenzpflichtig |
| Credit: | Science Photo Library / Gschmeissner, Steve |
| Bildgröße: | 4508 px × 4572 px |
| Modell-Rechte: | nicht erforderlich |
| Eigentums-Rechte: | nicht erforderlich |
| Restrictions: | - |
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