Johann Conrad Amman

Johann Conrad Ammann (1724 to 1811), recorded in this atlas as Johann Conrad Amman, was a Swiss physician, naturalist and collector from Schaffhausen. Born in that town on 24 December 1724, he graduated at Leiden in 1749 and then began to practise medicine in Schaffhausen, where he also died on 11 October 1811. He was particularly noted for his collection of fossils, and fossil fishes from his collection, found at Oehningen in Germany, were later studied by Georges Cuvier, a link recorded in a 2016 paper on the history of palaeontology. He is often confused with an earlier physician of the same town, Johann Konrad Ammann, who was born in 1669 and died in 1724 near Leiden.