Dernov, Vitaly. “First Occurrence of the Genus Sphenothallus Hall, 1847 (Cnidaria) in the Carboniferous of the Dnipro-Donets Depression, Ukraine”. Revista Brasileira de Paleontologia 26, no. 1 (June 9, 2023): 13–20. Accessed July 3, 2024. https://sbpbrasil.org/publications/index.php/rbp/article/view/393.