Article: Non-marine lamellibranch assemblages from the Coal Measures (Upper Carboniferous) of Pembrokeshire, West Wales

Assemblages of non-marine lamellibranchs are described from twelve horizons in the Ammanian and four in the Morganian strata of the Pembrokeshire coalfield. In the case of the Ammanian assemblages it is usually possible to indicate the approximate correlative fauna in one or more of the major British coalfields.