II.—Note on the Occurrence of Trigonograptus ensiformis, Hall, sp., and of a Variety of Didymograptus v-fractus, Salter, in the Skiddaw Slates

H. Oliphant Nicholson

doi:10.1017/S0016756800186868

II.—Note on the Occurrence of Trigonograptus ensiformis, Hall, sp., and of a Variety of Didymograptus v-fractus, Salter, in the Skiddaw Slates

Published online by Cambridge University Press: 01 May 2009

H. Oliphant Nicholson Esq

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I Wish to take the opportunity of recording the occurrence of the above-named Graptolites in the Skiddaw Slates of the Lake District, as they seem of exceptional interest.

Type: Original Articles
Information: Geological Magazine , Volume 7 , Issue 8 , August 1890 , pp. 340 - 344

DOI: https://doi.org/10.1017/S0016756800186868 [Opens in a new window]
Copyright: Copyright © Cambridge University Press 1890

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^{page 340 note 4} Grapt. Queb. Group, p. 114, pl. xiv. figs. 1–5.

^{page 340 note 5} Quart. Journ. Geol. Soc. 11. 1875, p. 659, pl. xxxiv. figs. 8a–8cGoogle Scholar.

^{page 342 note 1} Loc. cit. supra.

^{page 342 note 2} Loc. cit. p. 660, pl. xxxiv. figs. 9a–9d.

^{page 342 note 3} Ann. and Mag. N.Hist. 1869. ser. 4, vol. iv. p. 232, pl. xi. fig. 6Google Scholar.

^{page 343 note 1} Quart. Journ. Geol. Soc. vol. xix. p. 140,Google Scholar fig. 13e.

^{page 343 note 2} Ann. and Mag. N. Hist. ser. 5, vol. iiiGoogle Scholar.

^{page 343 note 3} I regret that I am unable to find a reference for this.

^{page 343 note 4} Geol. För. Förh. No. 58, Bd. v. No. 2, p. 39, 1880Google Scholar.

^{page 344 note 1} Ann. and Mag. Nat. Hist. 1874, vol. xiv. series iv. p. 7, pl. iii. figs. 21–22Google Scholar.

^{page 344 note 2} Geol. Survey, Viet. 1874, dec. i. p. 13, pl. i. figs. 9–14.Google Scholar

^{page 344 note 3} A Catalogue of Australian Fossils, by E. Etheridge, jun., F.G.S., 1878.

^{page 344 note 4} Die Graptolithenfamilie Dichograptidæ, Otto Herrmann, 1885.

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II.—Note on the Occurrence of Trigonograptus ensiformis, Hall, sp., and of a Variety of Didymograptus v-fractus, Salter, in the Skiddaw Slates

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