A monograph on the British carboniferous Crinoidea. Part IV
Wright, J. (1952). A monograph on the British carboniferous Crinoidea. Part IV. The Palaeontographical Society: London. 103-148, plates XXXII-XL pp.
Is voortzetting van:Wright, J. (1951). A monograph on the British carboniferous Crinoidea. Part III. The Palaeontographical Society: London. 47-102, plates XIII-XXXI pp., meer
Is voortgezet als:Wright, J. (1954). A monograph on the British carboniferous Crinoidea. Part V. The Palaeontographical Society: London. 149-190, plates XLI-XLVII pp., meer
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