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II.—Note on the Discovery of the Oldest Known Trigonia (T. Lingonensis, Dumortier) in Britain

Published online by Cambridge University Press:  01 May 2009

Extract

The ironstone of Cleveland is a repository for a number of interesting species of Mollusca, amongst which a Trigonia deserves especial notice, representing as it does the oldest form of the genus, and now recorded for the first time as British.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1872

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