Arkell, W.J. 1935. ‘The Ammonite Zones of the Upper Oxfordian - copy 2

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Arkell, W.J. 1935. ‘The Ammonite Zones of the Upper Oxfordian of Oxford, and the Horizons of the Sowerbys’ and Buckman’s Types’, extract from Quarterly Journal of the Geological Society, v. 92, pp. 146-187 + 2 photograph plates. Last page is a photocopy. Clean and in very good condition.