. Bulletin of the British Museum (Natural History), Geology. Fig. 3 Geological map of the Arenig and early Llanvirn outcrops west of Whilland. based on the authors' mapping and Geological Survey six-inch Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). London : BM(NH)

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