. Bulletin of the British Museum (Natural History) Geology Supplement. FROM NORTHWESTERN EUROPE 69 Rollier (1917) suggested that the name spinulosa had been used by previous authors for two quite distinct species ; one of which he considered to be " Argovien " 0-3 ^?M 0-7 /0-9 ' ^ \m 10 '1-2. --'-^-.''1-6 ^ & / 2 6 2 2 _,-' 1-9 1-7 A 30 3-6 39 nQQQQi. 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 Mus
. Bulletin of the British Museum (Natural History) Geology Supplement. FROM NORTHWESTERN EUROPE 69 Rollier (1917) suggested that the name spinulosa had been used by previous authors for two quite distinct species ; one of which he considered to be " Argovien " 0-3 ^?M 0-7 /0-9 ' ^ \m 10 '1-2. --'-^-.''1-6 ^ & / 2 6 2 2 _,-' 1-9 1-7 A 30 3-6 39 nQQQQi. 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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