Williams, Mark. 2002 Llandovery graptolites from localities along and adjoining the valleys of the Afon Cothi, Nant Melyn and west of the Afon Pysgotwr, Lampeter district. British Geological Survey, 14pp. (IR/02/193) (Unpublished)
Abstract
This report describes the Llandovery graptolite biostratigraphy at localities along the valleys of the Afon Cothi and Nant Melyn, and in the vicinity of Pen-y-raglan-wynt, Lampeter district. Some of the age assignments remain provisional and further collecting is recommended at some localities.
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