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Arkell, W.J. 1935. ‘The Ammonite Zones of the Upper Oxfordian of Oxford
Arkell, W.J. 1935. ‘The Ammonite Zones of the Upper Oxfordian of Oxford

Arkell, W.J. 1935. ‘The Ammonite Zones of the Upper Oxfordian of Oxford

Geological Society of London

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. Clean and in very good condition.