Whidborne, G. F. A Monograph of the Devonian fauna of the South of England / G. F. Whidborne. – London : [s. n.], 1890. – (The Monographies of the Paleontographical society) . Книга 131 14948
Vol.3 : The fauna of the Marwood and Pilton beds of North Devon and Sommerset. P.2. – 1897. – P.113-178 : tab.17-21.