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The brachiopod Ptychopleurella lapworthi (Davidson) from the Ordovician of Girvan, S.W. Scotland

Published online by Cambridge University Press:  14 July 2015

D. A. T. Harper
D. A. T. Harper*
Affiliation:
Department of Geology, The University, Dundee DD1 4HN, Scotland
*
1Present address: Department of Geology, University College, Galway, Ireland.
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Abstract

The small, distinctive, glyptorthinine brachiopod Ptychopleurella Schuchert and Cooper is widely distributed in rocks of early Ordovician to late Silurian age. Several species are known from the Barr and Ardmillan successions (middle-upper Ordovician) of the Girvan district, S.W. Scotland, one of which, ‘Orthis Lapworthi’ Davidson, has not been described in modern terms as there has been some confusion concerning its true identity. Recognition of this species of Ptychopleurella permits comparison with congeners elsewhere, strengthens the correlation of this part of the Girvan Succession with the middle Ordovician of North America, and provides a more complete record of this genus in the slope sedimentary facies of the northwestern margin of the Iapetus Ocean.

Type
Research Article
Information
Journal of Paleontology , Volume 60 , Issue 4 , July 1986 , pp. 845 - 850
Copyright
Copyright © The Paleontological Society 

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References

Bassett, M. G. 1970a. The articulate brachiopods from the Wenlock Series of the Welsh Borderlands and South Wales. Palaeontographical Society (Monograph), p. 1–26.Google Scholar
Bassett, M. G. 1970b. Variation in the cardinalia of the brachiopod Ptychopleurella bouchardi (Davidson) from the Wenlock Limestone of Wenlock Edge, Shropshire. Palaeontology, 13:297–302.Google Scholar
Bluck, B. J. 1983. Role of the Midland Valley of Scotland in the Caledonian Orogeny. Transactions of the Royal Society of Edinburgh, Earth Sciences, 74:119–136.Google Scholar
Boucot, A. J. 1970. Glypterina, new genus, the Ordovician ptychopleurellid. Journal of Paleontology, 44:984–985.Google Scholar
Cocks, L. R. M. 1978. A review of British Lower Palaeozoic brachiopods, including a synoptic revision of Davidson's Monograph. Palaeontographical Society (Monograph), 256 p.Google Scholar
Cooper, G. A. 1956. Chazyan and related brachiopods. Smithsonian Miscellaneous Collections, 127:1–1245.Google Scholar
Davidson, T. 1847. Observations on some Wenlock-limestone Brachiopoda, with descriptions of several new species. London Geological Journal, 1:52–65.Google Scholar
Davidson, T. 1883. A monograph of British fossil Brachiopoda, Vol. 5, Part 2, Silurian Supplement. Palaeontographical Society (Monograph), p. 135–242.Google Scholar
Harper, D. A. T. 1984. Brachiopods from the Upper Ardmillan succession (Ordovician) of the Girvan district, Scotland. Palaeontographical Society (Monograph), p. 1–78.Google Scholar
Ingham, J. K. 1978. Geology of a continental margin 2: middle and late Ordovician transgression, Girvan, p. 163–176. In Bowes, D. R. and Leake, B. E. (eds.), Crustal Evolution of North Western Britain and Adjacent Regions. Geological Journal Special Issue 10.Google Scholar
Jaanusson, V. and Bergström, S. M. 1980. Middle Ordovician faunal spatial differentiation in Baltoscandia and the Appalachians. Alcheringa, 4:89–110.CrossRefGoogle Scholar
Öpik, A. A. 1934. Über Klitamboniten. Acta et Commentationes Universitatis Tartuensis (A), 17:1–262.Google Scholar
Peach, B. N. and Horne, J. 1899. The Silurian rocks of Britain, 1, Scotland. Memoir Geological Survey, United Kingdom, 749 p.Google Scholar
Reed, F. R. C. 1917. The Ordovician and Silurian Brachiopoda of the Girvan district. Transactions of the Royal Society of Edinburgh, 51:795–998.Google Scholar
Reed, F. R. C. 1945. Notes on some Ordovician brachiopods and a trilobite from the Balclatchie Beds of Girvan. Annals and Magazine of Natural History (11), 11:215–222.Google Scholar
Ross, R. J. Jr., et al. 1982. The Ordovician System in the United States. International Union of Geological Sciences No. 14:1–73.Google Scholar
Schuchert, C. and Cooper, G. A. 1931. Synopsis of the brachiopod genera of the suborder Orthoidea and Pentameroidea, with notes on the Telotremata. American Journal of Science, 22:241–251.Google Scholar
Schuchert, C. and Schuchert, C. 1932. Brachiopod genera of the suborders Orthoidea and Pentameroidea. Memoir of the Peabody Museum of Natural History, 4:1–170.Google Scholar
Tripp, R. P. 1980. Trilobites from the Ordovician Balclatchie and lower Ardwell groups of the Girvan district, Scotland. Transactions of the Royal Society of Edinburgh, Earth Sciences, 71:123–145.CrossRefGoogle Scholar
Williams, A. 1962. The Barr and Lower Ardmillan Series (Caradoc) of the Girvan district, south-west Ayrshire, with descriptions of the Brachiopoda. Memoir of the Geological Society of London, 3:1–267.Google Scholar
Wright, A.D. 1964. The fauna of the Portrane Limestone, II. Bulletin of the British Museum of Natural History (Geology), 9:157–256.Google Scholar
Wright, A.D. 1973. On the splitting of the brachiopod genus Ptychopleurella . Journal of Paleontology, 47:137–139.Google Scholar
Wright, A.D. 1982. A new species of Ptychopleurella (Brachiopoda) from the Upper Ordovician Boda Limestone of Dalarna, Sweden. Journal of Paleontology, 56:351–357.Google Scholar