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Notes on the Graptolite Faunas of the Upper Ordovician and Lower Silurian

Published online by Cambridge University Press:  01 May 2009

K. A. Davies
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Extract

Work by the author on the rocks of the Upper Ordovician and Lower Silurian in Central Wales has led to a comparison with deposits of similar horizons in other areas. Several points of interest have arisen out of the investigation and may be of value in delimiting the zones of the Upper Ordovician and also in indicating the best workable definition of the base for the Silurian.

Type
Original Articles
Information
Geological Magazine , Volume 66 , Issue 1 , January 1929 , pp. 1 - 27
Copyright
Copyright © Cambridge University Press 1929

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References

page 2 note 1 Monograph of British Graptolites, p. 261.Google Scholar

page 3 note 1 Ibid., p. 263.

page 3 note 2 Ibid., p. 261.

page 3 note 3 Monograph of British Graptolites, p. 139.Google Scholar

page 5 note 1 Monograph of British Graptolites, p. 235.Google Scholar

page 7 note 1 “Ontogenetische Entwicklung und Biologie von Diplograptus und Monograptus” (Palaeontologische Zeitschrift, Band iii, Heft 4).Google Scholar

page 7 note 2 Geol. Mag., Vol. X, 1873, p. 500.Google Scholar

page 8 note 1 Monograph of British Graptolites, p. 358.Google Scholar

page 9 note 1 From Akis = a sharp point, a thorn.

page 10 note 1 Monograph of British Graptolites, p. 257.Google Scholar

page 10 note 2 Carruthers, Geol. Mag., Vol. V, 1868, p. 130.Google Scholar

page 11 note 1 ,Whittard, W. F., An. Mag. Nat. Hist., vol. xix, 1927, pp. 469 et seqq.Google Scholar

page 16 note 1 Presidential Address, Q.J.G.S., vol. lxi, 1905, pp. lxxxi, etc.Google Scholar

page 16 note 2 Monograph of British Graptolites, p. 526.Google Scholar

page 16 note 3 Q.J.G.S., vol. lxxi, 1915, pp. 189 et seqq.Google Scholar

page 16 note 4 Ibid., vol. xxxiv, 1878, pp. 240–346.

page 18 note 1 Elles, G. L., Geol. Mag., Vol. LXII, 1925, p. 343.Google Scholar

page 18 note 2 Q.J.G.S., vol. lxxi, 1915, p. 189 et seqq.Google Scholar

page 19 note 1 Ibid., vol. lxix, pp. 1 et seqq.

page 19 note 2 Elles, G. L., Q.J.G.S., vol. lxv, 1909, p. 169 et seqq.CrossRefGoogle Scholar

page 19 note 3 Memoir of Geol. Surrey, 1914, p. 37 (Haverfordwest).Google Scholar

page 20 note 1 Q.J.G.S., vol. lxxviii, 1923, pp. 512–13.Google Scholar

page 20 note 2 Ibid., vol. lxxviii, 1923, pp. 487–507.

page 20 note 3 Geol. Mag., Vol. LXIII, 1925, p. 343.Google Scholar

page 20 note 4 Wade, A., Q.J.G.S., vol. lxvii, 1911, p. 419.Google Scholar

page 21 note 1 Lapworth, G., Q.J.G.S., vol. xxxiv, 1878, p. 346.Google Scholar

page 21 note 2 Elles, G. L., Proc. Geol. Assoc., vol. xxxiii, 1922, p. 15.Google Scholar

page 21 note 3 Vide Supra, Palaeontological Notes.

page 21 note 4 Jones, O. T., Q.J.G.S., vol. lxv, 1909, p. 468.Google Scholar

page 21 note 5 = Cephalograptus (?). Vide Palaeontological Notes.

page 22 note 1 Monograph of British Graptolites, p. 189.Google Scholar

page 24 note 1 Vide Palaeontological Notes.

page 25 note 1 Andrew, G., Q.J.G.S., vol. lxxxi, 1925, p. 391.Google Scholar