Long-accepted theory of vertebrate origin upended by lamprey fossils
Fossilized fish larvae may ‘rewrite textbooks’
Mass Shark Extinction Triggered by Dinosaur-Killing Asteroid
<p>Prof. Michael Coates analyzes end-Cretaceous shark extinction and evolution</p>

Sharks, humans shared common ancestor 440 million years ago
Prof. Michael Coates discusses research on shark evolution
United Press International (UPI)
Common Ancestor of Sharks and Humans Lived 440 Million Years Ago
Prof. Michael Coates examines one of the earliest known fossil sharks on record
Live Science