Ancient fish that is bony rethink of just exactly how sharks evolved

Imperial University London

VIDEO CLIP: Virtual three-dimensional type of the braincase of Minjinia turgenensis generated from CT view that is scan

Credit: Imperial University London/Natural History Museum

Sharks' non-bony skeletons had been considered to be the template before bony interior skeletons developed, but a brand new discovery that is fossil otherwise.

The breakthrough of a 410-million-year-old fish fossil with a bony skull indicates the lighter skeletons of sharks might have developed from bony ancestors, as opposed to the other means around.

Sharks have skeletons made cartilage, that is around half the thickness of bone tissue. Cartilaginous skeletons are recognized to evolve before bony ones, however it had been believed that sharks split off their pets in the tree that is evolutionary this occurred; keeping their cartilaginous skeletons while other fish, and in the end us, proceeded to evolve bone tissue.

Now, a worldwide group led by Imperial university London, the Natural History Museum and scientists in Mongolia can see a seafood fossil having a bony skull this is certainly an old relative of both sharks and animals with bony skeletons. Read more