Valent, Martin, Oldřich Fatka, Michal Szabad, Václav Micka, and Ladislav Marek. “Skryjelites auritus Gen. Et Sp. Nov. and Quasimolites quasimodo Gen. Et Sp. Nov.—two New Middle Cambrian Hyolithids (?Mollusca) from the Czech Republic”. Zootaxa 4007, no. 3 (August 28, 2015): 419–426. Accessed May 2, 2025. https://www.mapress.com/zt/article/view/zootaxa.4007.3.8.