Duncan PM. (1868). A monograph of the British fossil corals Second Series. Part 4, no. 2. Corals from the Zone of Ammonites Angulatus (continued)(and other zones of the Lias). Palaeontographical Society of London. 21: 45-73.
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Duncan PM
1868
A monograph of the British fossil corals Second Series. Part 4, no. 2. Corals from the Zone of Ammonites Angulatus (continued)(and other zones of the Lias).