While the common ancestor of vertebrates with synovial joints is still a mystery, the oldest specimen with evidence of these ...

Focus: Understanding how the morphological development of bony fishes has changed over evolutionary time We study the morphological development of bony fishes, and how it has changed over evolutionary ...

Sturgeons are one of the oldest groups of fishes. Sporting an armor of five rows of bony, modified scales called dermal ...

These joints are present in land vertebrates and bony fish, suggesting this feature had evolved in the common ancestors of these groups, but it remains unclear when in early vertebrate evolution ...

One of the most important milestones in the evolution of life began some 400 ... Although fishlike in many ways, it had robust bony legs, arms, and digits. Ichthyostega clearly spent some time ...

These joints are present in land vertebrates and bony fish, suggesting this feature had evolved in the common ancestors of these groups, but it remains unclear when in early vertebrate evolution ...

Also known as the rock sturgeon, the lake sturgeon is one of 27 species of sturgeon, a family of bony fish that found around the world that first appears in the fossil record more than 200 million ...

The difference between a shark and other fish: Unlike bony fish, sharks, rays, skates, and chimaeras are cartilaginous fish, meaning their skeletons are made of cartilage, not bone. Their skin is ...