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Metagenesis in Lepidocyclina from the Eocene of Peru

Published online by Cambridge University Press:  01 May 2009

J. U. Todd
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Extract

IN December of 1932 a paper was published in the Geological Magazixe (1) dealing with a number of Tertiary orbitoidal foraminifera from N.W. Peru, which had been presented to the British Museum. During the examination of the material it was noticed that there were no forms present comparable to Lepidocyclina R. Douvillei Lisson in regard to the size of the embryonic apparatus, although a large number of the specimens had been collected from Lisson’s type locality. All the forms examined from Mount Organos and from contemporaneous deposits in the neighbourhood proved to have a much smaller apparatus and were found to be identical with Lepidocyclina peruviana (Cushman) when compared with the type material in the Sedgwick Museum, Cambridge.

Type
Original Articles
Information
Geological Magazine , Volume 70 , Issue 9 , September 1933 , pp. 393 - 396
Copyright
Copyright © Cambridge University Press 1933

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References

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