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Sharks with bones

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Gogoselachus Lynnbeazleyae was a shark from the later Devonian, and recent findings show that the jaw of the shark contains bone. This is rather surprising as modern sharks lack bones completely. Seeing this shows that sharks likely evolved from bony fish in the Silurian and kept some sort of bone in their skeletons until 380 million years ago and likely well into the Carboniferous if not further. 


The leading idea now seems to be that sharks evolved from placoderms. 




Also in Shark News is the "Godzilla" Shark, which is an impresive Carboniferous age predator with some cool spikes and stubby Carnotaurus-like(or Godzilla like) face.


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