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III.—The Ascoceratiæ and the Lituitiæ of the Upper Silurian Formation of Gotland. Described by G. Lindström. 40 pages and 7 plates. Communicated to the Royal Swedish Academy of Sciences, 11th 12, 1889. (Stockholm, 1890.)

Published online by Cambridge University Press:  01 May 2009

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Copyright © Cambridge University Press 1890

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References

page 375 note 1 Written in English.

page 376 note 1 The fossils described in this memoir belong mostly, we are told, to the Palæontological Department of the Swedish State Museum at Stockholm.

page 377 note 1 Oesterr. Bläatt. für Litt. u. Kunst, 1847; Haidinger's Berichte über A. Mittheil. v. Freund. d. Xaturwiss. in Wien, 1847, p. 268; also Bull. Soc. Geol. France, 1855, ser. 2, vol. xii. p. 157Google Scholar.

page 377 note 2 Syst. Sil. de la Bohéeme, 1867, vol. ii. pt. i. p. 372Google Scholar.

page 377 note 3 Genera of Fossil Cephalopods,” Proceed. Boston Soc. Nat. Hist. vol. xxii. 1883, p. 278.Google ScholarBillingsites is a Silurian genus closely allied to Ascoceras. The type species is Asc. Canadense, Billings, , Rep. Prog. Geol. Surv. Canada, 1853–1856, p. 310Google Scholar.

page 378 note 4 Their recurved ends which form a little funnel through which the siphuncle passes.

page 378 note 1 A fragment of an unknown species, figured by Dr. Lindström, has indications of no less than twelve septa.

page 378 note 1 We observe that Dr. Lindström uses the term “nucleus,” in the same sense; but it is scarcely so appropriate.

page 379 note 1 From a funnel.