A monograph on the British carboniferous Crinoidea. Part I
Wright, J. (1950). A monograph on the British carboniferous Crinoidea. Part I. The Palaeontographical Society: London. xxx, 20, plates I-VII pp.
Continued by:Wright, J. (1951). A monograph on the British carboniferous Crinoidea. Part II. The Palaeontographical Society: London. 25-45, plates VIII-XII pp., more
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