Duncan PM. (1887). A monograph of the British fossil corals Second Series. Part 4, no. 1. Corals from the Zones of Ammonites Planorbis and Ammonites Angulatus in the Liassic Formation. Palaeontographical Society of London. 20: 1-43.
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Duncan PM
1887
A monograph of the British fossil corals Second Series. Part 4, no. 1. Corals from the Zones of Ammonites Planorbis and Ammonites Angulatus in the Liassic Formation.