Our understanding of shark evolution may need to be rethought following the discovery of a 410-million-year-old ancestor of this group of fish. Sharks are cartilaginous fish, meaning their skeletons ...

Sharks' non-bony skeletons were thought to be the template before bony internal skeletons evolved, but a new fossil discovery suggests otherwise. The discovery of a 410-million-year-old fish fossil ...

A 410-million-year-old fossil of an armored fish has completely changed the history of sharks, according to a newly published study. The fish, known as Minjinia turgenensis, had a skeleton made of ...

Sophisticated sharks The discovery of bone in the jaw of an ancient shark indicates modern sharks are far more advanced than previously thought, say researchers. The finding, reported in the journal ...

Researchers from the University of Chicago have used tools developed to explore 3-D movements and mechanics of modern-day fish jaws to analyze a fossil fish for the first time. Combined with CT ...

Sharks' non-bony skeletons were thought to be the template before bony internal skeletons evolved, but a new fossil discovery suggests otherwise. Sharks' non-bony skeletons were thought to be the ...