A 15-year search for fossils in Africa has led to the discovery of eight fish specimens that are 450 million years old – 50 million years older than any previous fish fossil on the continent and amongst the oldest in the world.Professor Richard Aldridge, of the Department of Geology at the University of Leicester, who co-led the scientific expedition, says the fossil discovery is among the most remarkable and exciting ever to be found on the continent. He said: ‘These exciting fossils help to fill in a ‘missing link’ in the evolutionary history of the very early fishes. They are...