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A Lancefieldian graptolite from the Lake District

Published online by Cambridge University Press:  01 May 2009

A. W. A. Rushton
A. W. A. Rushton
Affiliation:
British Geological Survey, Exhibition Road, London, SW7 2DE
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Abstract

Large Dictyonema species, including D. pulchellum T. S. Hall, have been collected from beds in the Uldale Fells (northern Lake District), below strata yielding Didymograptus protobalticus Monsen. They suggest the presence there of graptolitic beds transitional from Lancefieldian to Bendigonian in age (approximately Tremadoc-Arenig) and suggest that the area may yet provide an internationally correlatable base to the Arenig Series in Britain.

Type
Articles
Information
Geological Magazine , Volume 122 , Issue 4 , July 1985 , pp. 329 - 333
Copyright
Copyright © Cambridge University Press 1985

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References

Cocks, L. R. M. & Fortey, R. A. 1982. Faunal evidence for oceanic separations in the Palaeozoic of Britain. Journal of the Geological Society of London 139, 465–78.Google Scholar
Cooper, R. A. 1978. Sequence and correlation of Tremadoc graptolite assemblages. Alcheringa 3, 7–19.Google Scholar
Cooper, R. A. 1979. Ordovician geology and graptolite faunas of the Aorangi Mine area, north-west Nelson, New Zealand. New Zealand Geological Survey Palaeon-tological Bulletin no. 47, 127 pp., 19 pls.Google Scholar
Cooper, R. A. & Fortey, R. A. 1982. The Ordovician graptolites of Spitsbergen. Bulletin of the British Museum of Natural History (Geology) 36, 157–302, pls 1–6.Google Scholar
Eastwood, T., Hollingworth, S. E., Rose, W. C. C. & Trotter, F. M. 1968. Geology of the country around Cockermouth and Caldbeck. x + 298 pp. Memoir. Geological Survey of Great Britain. London: H.M.S.O.Google Scholar
Erdtmann, B. -D. 1982. A reorganisation and proposed phylogenetic classification of planktic Tremadoc (early Ordovician) dendroid graptolites. Norsk Geologisk Tidsskrift 62, 122–45, 2 pls.Google Scholar
Fortey, R. A., Landing, E. & Skevington, D. 1982. Cambrian-Ordovician boundary sections in the Cow Head Group, western Newfoundland. In The Cambrian-Ordovician Boundary: Sections, Fossil Distributions, and Correlations (ed. Bassett, M. G. and Dean, W. T.), pp. 95–129. National Museum of Wales, Geological Series no. 3, Cardiff, 227 pp.Google Scholar
Hall, J. 1865. Graptolites of the Quebec group. Geological Survey of Canada. Figures and descriptions of Canadian Organic remains, Decade II. Montreal, London, New York, Paris.Google Scholar
Hall, T. S. 1899. Victorian graptolites: part II. The graptolites of the Lancefield Beds. Proceedings of the Royal Society of Victoria 11 (new series), 166–78, pls. 17–19.Google Scholar
Jackson, D. E. 1974. Tremadoc graptolites from Yukon Territory, Canada. Special Papers in Palaeontology no. 13, pp. 35–58, pl. 5.Google Scholar
Jackson, D. E. 1978. The Skiddaw Group. In The Geology of the Lake District (ed. Moseley, F.), pp. 79–98. Yorkshire Geological Society Occasional Publication no 3. Leeds, 284 pp.Google Scholar
Jackson, D. E. 1979. A new assessment of the stratigraphy of the Skiddaw Group along the northern edge of the main Skiddaw Inlier. Cumberland Geological Society Proceedings 4, 21–31.Google Scholar
Molyneux, S. G. & Rushton, A. W. A. 1985. A discovery of Tremadoc rocks in the Lake District. Proceedings of the Yorkshire Geological Society 45 (in press).Google Scholar
Monsen, A. 1937. Die graptolithenfauna im unteren Didymograptusschiefer (Phyllograptusschiefer) Nor-wegens. Norsk Geologisk Tidsskrift 16, 57–266, pls 1–20.Google Scholar
Nicholson, H. A. 1873. On some fossils from the Quebec Group of Point Levis, Quebec. Annals and Magazine of Natural History, series 4, 11, 133–43.CrossRefGoogle Scholar
Thomas, D. E. 1960. The zonal distribution of Australian graptolites. Journal and Proceedings, Royal Society of New South Wales 94, 1–58, pls 1–15.Google Scholar
Turner, J. C. M. 1960. Faunas graptoliticas de America del Sur. Revista de la Asociacion geologica Argentina 14, 1–180, 8 pls.Google Scholar
Whittington, H. B., Dean, W. T., Fortey, R. A., Rickards, R. B., Rushton, A. W. A. & Wright, A. D. 1984. Definition of the Tremadoc Series and the series of the Ordovician System in Britain. Geological Magazine 121, 17–33.Google Scholar