Lycett, J. (1853). On some new species of Trigonia from the Inferior Oolite of the Cotteswolds, with preliminary remarks upon that genus. The Annals and Magazine of Natural History, Zoology, Botany and Geology, Series 2. 12: 225-240.
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Lycett, J.
1853
On some new species of <em>Trigonia</em> from the Inferior Oolite of the Cotteswolds, with preliminary remarks upon that genus
The Annals and Magazine of Natural History, Zoology, Botany and Geology, Series 2