Cao 1987. Late Silurian and Devonian rugose corals from Luqu and Tewo regions, West Qinling mountains. Late Silurian-Devonian strata and fossils from Luqu-Tewo area of West Quinling mountains, China. Volume 1., Nanjing University Press, Nanjing., 1987: i-v, 1-305. Chapter pagination: 139-202