Palaeospondylus gunni, a small creature with an eel-like body that lived during the Middle Devonian epoch around 390 million years ago, is represented by thousands of similarly preserved fossils from Achannaras quarry in Caithness, Scotland. With radically different interpretations of its structure, the species had been assigned to almost all major jawless and jawed vertebrate groups. Paleontologists have now described a new and older species of Palaeospondylus...
