. Bulletin of the British Museum (Natural History), Geology. . Fig. 85 a, b, Dionidella? sp. indet. 1. Upper Arenig, Fennian Stage, S. abyfrons Biozone, Pontyfenni Formation, loc. 38, Peny-y-parc. a, cranidium, x 11, BGS Prl735; b, incomplete cranidium showing fine pits and anastomosing ridges, x 8, It. 18977. c, d, Dionidella? sp. indet. 2. Upper Arenig, Fennian Stage, B. rushtoni Biozone. c, cranidium, loc. 23, Pontyfenni, x 6, It. 18978; d, pygidium, latex cast from external mould, loc. 24, Llwyn-crwn, x 6, It. Please note that these images are extracted from scanned page images tha
. Bulletin of the British Museum (Natural History), Geology. . Fig. 85 a, b, Dionidella? sp. indet. 1. Upper Arenig, Fennian Stage, S. abyfrons Biozone, Pontyfenni Formation, loc. 38, Peny-y-parc. a, cranidium, x 11, BGS Prl735; b, incomplete cranidium showing fine pits and anastomosing ridges, x 8, It. 18977. c, d, Dionidella? sp. indet. 2. Upper Arenig, Fennian Stage, B. rushtoni Biozone. c, cranidium, loc. 23, Pontyfenni, x 6, It. 18978; d, pygidium, latex cast from external mould, loc. 24, Llwyn-crwn, x 6, It. 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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