Published online by Cambridge University Press: 01 May 2009
DURING recent years considerable progress has been made in the study of the palaeontology of the Coal-measures. Attention has been directed to the flora, and to the marine and non-marine faunas. Although it is undesirable to attempt a complete revision of the classification of the Coal-measures until further work has been carried out, it may be useful to indicate certain conclusions which appear to be in accord with present knowledge.
page 495 note 5 Kidston, R., Proc. Roy. Phys. Soc. Edin., vol. xii, 1894, p. 183;Google Scholar “Division and Correlation of the Upper Portion of the Coal Measures”: Quart. Journ. Geol. Soc., vol. lxi, 1905, p. 308Google Scholar.
page 496 note 1 Bisat, W. S., “The Carboniferous Goniatites of the North of England”: Proc. Yorks. Geol. Soc., vol. xx, 1924, p. 40;Google Scholar “The Carboniferous Goniatite Zones of England, etc”: Congrés. de Strat. Carb., Heerlen, 1927–1928, p. 117Google Scholar.
page 496 note 2 Davies, J H. and Trueman, A. E., “A Revision of the Non-Marine Lamellibranchs of the Coal Measures”: Quart. Journ. Geol. Soc., vol. lxxxiii, 1927, p. 210;CrossRefGoogle Scholar Dix, E. and Trueman, A. E., “Marine Horizons in the Coal Measures of South Wales”: Geol. Mag., vol. lxv, 1928, p. 356;CrossRefGoogle Scholar Clift, S. G. and Trueman, A. E., “The Sequence of Non-Marine Lamellibranchs in the Coal Measures of Notts and Derbyshire”: Quart. Journ. Geol. Soc., vol. lxxxxv, 1929, p. 77;CrossRefGoogle Scholar Hopkins, W., “The Distribution of the Mussel Bands in the Northumberland and Durham Coalfield”: Proc. Univ. Durham Phil. Soc., vol. viii, 1928, p. 1Google Scholar.
page 496 note 3 Trueman, A. E., “Some Problems in the Classification of the Upper Carboniferous Rocks of Great Britain”: Cong. de Strat. Carb., Heerlen, 1927–1928, p. 733Google Scholar.
page 497 note 1 Davies, D. F., Dix, E. and Trueman, A. E., “Boreholes in Cwmgorse Valley”: Proc. S. Wales Inst. Eng., vol. xliv, 1928, p. 97Google Scholar.
page 497 note 2 See especially the discussion on Kidston's paper (1905) referred to aboveGoogle Scholar.
page 498 note 1 Jongmans, W. J., Congrés de Strat. Carb., Heerlen, 1927–1928, table facing p. 394Google Scholar.
page 498 note 2 P. Kukuk, ibid., table facing p. 448.
page 498 note 3 P. Pruvost, ibid., table facing p. 520.
page 498 note 4 Perhaps it is unnecessary to comment here on Mr. Bisat's use of the term Staffordian, proposed by Kidston to replace his term Transition Coal-measures. It is very undesirable that such a term should be extended, unless the floral evidence requires it, to include on the one hand those measures which Kidston called Radstockian and on the other the Middle Coal-measures.