MolluscaBase name details
original description
Etheridge, R. (1881). On a new species of <em>Trigonia</em> from the Purbeck Beds of the Vale of Wardour, with a note on the strata by W. R. Andrews. <em>The Quarterly Journal of the Geological Society of London.</em> 37: 246-253., available online at https://www.biodiversitylibrary.org/page/43971470 page(s): 246, text-fig. 1 [details]
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