. Bulletin of the British Museum (Natural History), Geology. THE ORDOVICIAN TRILOBITE FAUNAS OF r BUILTH-LLANDRINDOD INLIER, CENTRAL WALES. PART I. BY CHRISTOPHER PAUL HUGHES M Pp. 39-103; 14 Plates, 6 Text-figures BULLETIN OF THE BRITISH MUSEUM (NATURAL HISTORY) GEOLOGY Vol. 18 No. 3 LONDON: 1969. 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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