. Bulletin of the British Museum (Natural History), Geology. . Fig. 93 Placoparia (Placoparia) cambriensis Hicks 1875. Upper Arenig, Fennian Stage, Pontyfenni Formation, S. abyfrons Biozone, loc. 38, Pen-y-parc (c, f); B. rushtoni Biozone, loc. 23, Pontyfenni (a, b, d); Fennian Stage, Tankerville Flags, Bergam Quarry, Shelve inlier (g) and Shelve Church Beds, cart track north of Wood House, Gravels, Shelve inlier (e, h); Fennian Stage, D. levigena Biozone, Llanfallteg Formation, loc. 52P, Llanfallteg (j); lower Llanvirn, D. artus Biozone, Llanfallteg Formation (i, k-m). a, axial shield, x 3, I
. Bulletin of the British Museum (Natural History), Geology. . Fig. 93 Placoparia (Placoparia) cambriensis Hicks 1875. Upper Arenig, Fennian Stage, Pontyfenni Formation, S. abyfrons Biozone, loc. 38, Pen-y-parc (c, f); B. rushtoni Biozone, loc. 23, Pontyfenni (a, b, d); Fennian Stage, Tankerville Flags, Bergam Quarry, Shelve inlier (g) and Shelve Church Beds, cart track north of Wood House, Gravels, Shelve inlier (e, h); Fennian Stage, D. levigena Biozone, Llanfallteg Formation, loc. 52P, Llanfallteg (j); lower Llanvirn, D. artus Biozone, Llanfallteg Formation (i, k-m). a, axial shield, x 3, ; b, small pygidium, x 10, NMW ; c, cranidium with associated free cheek, x 4, BGS Prl794; d, cephalon with two attached thoracic segments, x 3-5, NMW ; e, cranidium, latex cast from external mould, x 5, BGS GSM 102437; f, small incomplete axial shield, x 6-5, BGS Prl751; g, cranidium, latex cast from external mould, x 5, BGS GSM92936 (counterpart of original of Whittard, 1958: pi. 14, fig. 10); h, cranidium, x 6, BGS GSM 102436; i, cranidium with associated free cheek, old quarry north of Clarbeston, x 3-5, ; j, ventral side of anterior end of axial shield with hypostoma, x 5-5, It. 18982; k, pygidium with two attached thoracic segments, latex cast from external mould, loc. 50, Cefn-maen-llwyd, x 8, It. 18983; 1, enrolled specimen, latex cast from external mould showing cephalon and pygidium (the pygidial pleural spines have been elongated by distortion), stream 275 m south of Rhyd-y-wrach (Geological Survey loc. Pern. 24SE E/.12), x 5, BGS Pr2013; m, lectotype, complete axial shield, Llanvirn quarry, x 2, BGS GSM35263 (original of Hicks 1875: pi. 9, fig. 2).. 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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