Latest Gnathostomata Stories
A two-faced fish more than 400 million years old is likely the last common ancestor of all jawed vertebrates--including us--and provides additional evidence that sharks are not primitive creatures, as had long been assumed.
Despite having retained their basic "sharkiness" for millions of years, modern sharks have less to tell us about the early evolution of jawed vertebrates—including humans—than was previously thought.
A study published on Wednesday in the journal Nature has revealed new details on the evolution of the jaw – a major defining structure in the evolution of the face.
Researchers from the University of Valencia and the Natural History Museum of Berlin have studied the fossilized remains of scales and bones found in Teruel and the south of Zaragoza, ascertaining that they belong to a new fish species called Machaeracanthus goujeti that lived in that area of the peninsula during the Devonian period.
An unusual fossil fish that has fins behind its anus could have implications for human evolution according to a scientist at The University of Manchester.
According to a report in the journal Nature Genetics, an international team of geneticists has announced the successful sequencing of the sea lamprey genome.
It’s likely the question “how long have humans had teeth?” has never entered into many normal and sober minds. Scientists and, more specifically, odontologists, are a different breed, however, and have wondered about the origins of teeth for many years.
More than 99 per cent of modern vertebrates (animals with a backbone, including humans) have jaws, yet 420 million years ago, jawless, toothless armour-plated fishes dominated the seas, lakes, and rivers.
New research published Wednesday shows that sex has been around for much longer than many scientists had previously believed, with internal fertilization prevalent among prehistoric fish living on tropical reefs during the Devonian period 380 million years ago.
A Swedish scientist has reported the finding of a fossilized specimen that may provide new insight into how jawed vertebrates evolved.
- An uxorious, effeminate, or spiritless man.
- A timorous, cowardly fellow.