Etheridge, R. (1881). On a new species of Trigonia from the Purbeck Beds of the Vale of Wardour, with a note on the strata by W. R. Andrews. The Quarterly Journal of the Geological Society of London. 37: 246-253.
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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
The Quarterly Journal of the Geological Society of London