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

All vertebrates – animals with backbones ... “We’re part of the same phylum called Chordata. We share a common ancestor. Those in Chordata have backbones. So, this will also include ...

In 2015, researchers claimed that the last common ancestor shared by all jawed vertebrates wasn't completely shark-like. This assertion was made after analyzing a 415 million-year-old fish skull ...

The researchers also studied fossils of extinct fishes dating back almost 400 million years and saw evidence that some of the oldest jawed fishes had bones with joint cavities for articulated ...

All tetrapods descended from a common ancestor that just happened to have ... and hand of different vertebrates form a recognizable pattern, even though they have been adapted to different functions.

Feathers are among the most complex cutaneous appendages in the animal kingdom. While their evolutionary origin has been ...

From scales to feathers to fur, vertebrates clothe themselves in ... placing the structures in reptiles’, birds’, and mammals’ common ancestors more than 300 million years ago.

Feathers may have started as simple filaments in ancient dinosaurs, but a team of Swiss researchers is digging deep into the ...