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II.—Dr. C. W. Gümbel on the so-called “Nullipores”, and their Participation in the Composition of Calcareous Rocks (“Die sogenannten Nulliporen”, &c.). From the Transactions of the Bavarian Academy of Sciences, 1871 and 1872.

Published online by Cambridge University Press:  01 May 2009

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Copyright © Cambridge University Press 1873

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References

page 123 note 1 Probably the same as Dactylina Fiseheri, Zborezewski, Bull. Imp. Nat. Moscou, 1843, vol. xvi., p. 363, woodcut. It is possible that Fischer de Waldheim’s Spirolina Sulcata, in the Carboniferous Limestone of Miatchkowa, “Oryetographie Moscon”, 1830, pl. 12, fig. 3 a, b, c, may belong to the Dactyloporideæ.—T.R.J.