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Eagar, R. M. C. (1947). A Study of a Non-Marine Lamellibranch Succession in the Anthraconaia lenisulcata Zone of the Yorkshire Coal Measures. Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences. 233(593): 1-54.
Eagar, R. M. C. (1947). A Study of a Non-Marine Lamellibranch Succession in the Anthraconaia lenisulcata Zone of the Yorkshire Coal Measures. Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences. 233(593): 1-54.
