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II.—Notes on the Genus Trinucleus.—Part I

Published online by Cambridge University Press:  01 May 2009

F. R. Cowper Reed
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Extract

The large collection of specimens of the various species of Trinucleus from British Ordovician beds which is available for study in the Sedgwick Museum offers unsurpassed opportunities for determining the characters of the members of this interesting genus as represented in the British Isles. The following notes have been compiled from a comparative study of this material supplemented by specimens from the Jermyn Street Museum and elsewhere. The frequent addition of specimens to the collection at Cambridge since Salter and McCoy's time have allowed for a more comprehensive and complete survey to be made than was then possible, though several doubtful points still await better material before they can be cleared up.

Type
Original Articles
Information
Geological Magazine , Volume 9 , Issue 8 , August 1912 , pp. 346 - 353
Copyright
Copyright © Cambridge University Press 1912

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References

page 346 note 1 Plate XIX will accompany the second part of this paper in the September Number.

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