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III.—Descriptions of New Species of Cystiphyllum from the Devonian Rocks of North America

Published online by Cambridge University Press:  01 May 2009

H. Alleyne Nicholson
H. Alleyne Nicholson
Affiliation:
Professor of Biology in theCollege of Physical Science, Newcastle-on-Tyne.2
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Extract

No less than seven species of Cystiphyllum have already been recorded as occurring in the Devonian Rocks of North America; viz. C. vesiculosum, Goldf., C. Senecaense, Billings, C. grande, Billings, C. sulcatum, Billings, C. Americanum, Edw. and Haime, C. aggregatum, Billings, and C. mundulum, Hall. To these I have now to add the following four species, all of which have been obtained by me from the Devonian Formation of Canada and Ohio.

Type
Original Articles
Information
Geological Magazine , Volume 2 , Issue 1 , January 1875 , pp. 30 - 33
Copyright
Copyright © Cambridge University Press 1875

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