Duncan, P. Martin. A Monograph of the British fossil Corals. Ser. 2 / P. M. Duncan, M. B. Lond. – London : [s. n.], 1868. – (The Monographies of the Paleontographical society) . Книга 131 14899
P.2, N1 : Corals from the White Chalk, the Upper Grensand and the Red Chalk of Hunstanton. – 1869. – 26 p. : tab.9.