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 14949
Vol.3 : The fauna of the Marwood and Pilton beds of North Devon and Somerset (continued). P.3. – 1898. – P.179-236 : tab.22-38.