The jawed skates and sharks have articulated, synovial joint cavities, while the jawless lampreys and hagfish do not. Genetic analysis of modern skates showed that they also express proteins for genes ...

Demonstrating that cartilaginous jawed fish also have synovial joints opens up the questions of whether their–and our–common ancestor also had them.

The efficient architecture of our joints, which allows our skeletons to be flexible and sturdy, originated among our most ancient jawed fish ancestors, according to a study published in the open ...

The efficient architecture of our joints, which allows our skeletons to be flexible and sturdy, originated among our most ancient jawed fish ancestors, according to a study published February 25th ...

Together, the new fossil fish from both sites push back the origin of vertebrate jaws by about 14 million years. It may even be the case that jawed fish originated by the Great Ordovician ...

In recent years, paleontologists have found scales and other bits that suggest the presence of jawed fish during the Silurian period, which lasted from 443.8 million to 419.2 million years ago.

Previously, the earliest known jawed animal was a fish that lived some 423 million years ago. With this discovery, science can present the first tangible evidence of a diversification of major ...

The first appearance of shark-like jawed fish may have happened some 15 million years earlier than previously thought, new evidence suggests. A handful of fossil teeth from a completely new ...