The common ancestor of all jawed vertebrates on Earth resembled a shark, according to a new analysis of the braincase of a 290-million-year-old fossil fish that has long puzzled paleontologists.

A newly described fossil fish species, Romundina gagnieri, has revealed teeth growing on bony plates that line the roof of its mouth. This extends the acquisition of teeth in jawed fishes to a far ...

A recent find in the Arctic has shed new light on the early stages of jaw and tooth evolution in vertebrates. Researchers from the Royal Belgian Institute of Natural Sciences (RBINS) uncovered a ...

While dinosaurs often dominate our collective imagination of prehistoric terrors, Earth’s ancient history harbored creatures far more nightmarish than even the fiercest Tyrannosaurus rex. From oceans ...

A handful of fossil teeth from a completely new species, uncovered from rock samples found in China, suggest jawed fish emerged some time at the end of the Ordovician, or beginning of the Silurian ...