Professor L.R. (Leslie Rowsell) Moore, (23 June 1912 – 13 November 2003), was Sorby Professor of Geology at Sheffield University, where under his leadership its geology department became one of the largest in the country. He also made significant advances in the study of palaeobotany and palynology. He was called as an expert witness at the inquiry into the Aberfan disaster. He was instrumental in the creation of the Micropalaeontological Society and was its first President. He has been described as "one of the founders of modern Carboniferous palynology".