Several new species of coelacanths that lived at the end of the Triassic period, some 200 million years ago, have been identified from museum specimens unearthed over 150 years ago in the United Kingdom. An artist’s reconstruction of a large mawsoniid coelacanth from the British Rhaetian. Image credit: Daniel Phillips. Coelacanths are evolutionarily unique lobe-finned fishes that first appeared in the fossil record in the Early Devonian epoch, around...