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IX.—Note on the Deciduous Septa of Ascoceras Murchisoni, Barrande

Published online by Cambridge University Press:  01 May 2009

Arthur H. Foord
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Extract

An interesting paper has lately been contributed to this Magazine (December, 1888, p. 532), by Dr. Gustav Lindström, of Stockholm, in which he announced his discovery of the earlier, or Nautilus stage, as he termed it, in several specimens of Ascoceras from the Silurian of the Island of Gothland. I find, however, in looking over the supplementary volume of the Syst. Sil. du centre de la Bohême,3 that Dr. Lindström's discovery has been anticipated by M. Barrande, who observed and described two of the normal chambers (Nautilus stage, of Lindström) attached to a specimen of Ascoceras Murchisoni from the Silurian strata (Étage E) of Karlstein in Bohemia.

Type
Original Articles
Information
Geological Magazine , Volume 6 , Issue 3 , March 1889 , pp. 121 - 123
Copyright
Copyright © Cambridge University Press 1889

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References

page 121 note 1 Lydekker, , op. cit. p. 158. R. 178.Google Scholar

page 121 note 2 Ibid. R. 178, a.

page 121 note 3 Vol. ii pt. i. 1877, Supplém. et Série tardive, p. 98, plate ccccxci. figs. 3–7.

page 121 note 4 Ascoceras prototype des Nautilides, Bull. Boc. géol. de France, tome xii. p. 157, 1855.Google Scholar