Cladoselachiformes
From Wikipedia, the free encyclopedia
| Cladoselachiformes Fossil range: Devonian-Permian |
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Cladoselachiformes is an extinct order of primitive sharks. They were characterized by having an enlongated body with a spine in each of the two dorsal fins.
[edit] References
- Cladoselachiformes, Dictionary of Zoology (1999).
- Evolution and paleontology ( fish ). Animal Aqua.
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