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XVI.—Caradocian Trilobites from Mudstones at Craighead Quarry, near Girvan, Ayrshire

Published online by Cambridge University Press:  06 July 2012

Synopsis

Sixteen new species of trilobites are described and named, and thirty species are figured. The specimens were collected from a small exposure of mudstones at Craighead Quarry; most of the species are only known from this one exposure. The occurrence of several species which show strong affinities with forms from higher horizons indicates that the mudstones are more recent than other Balclatchie Group (Lower Caradocian) deposits.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1955

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References

References to Literature

Anderson, F. W., and Pringle, J., 1946. “On a section of the Balclatchie Beds at Craighead Quarry, near Girvan, Ayrshire”, Geol. Mag., 83, 172176.CrossRefGoogle Scholar
Angelin, N. P., 1854. Palæontologia Scandinavica, P. I. Crustacea Formationis Transitionis, Lipsiæ (Lundæ).Google Scholar
Billings, E., 1860. “Description of some new species of Fossils from the Lower and Middle Silurian Rocks of Canada”, Canadian Naturalist and Geologist, 5, 4973.Google Scholar
Bradley, J. H., 1930. “Fauna of the Kimmswick limestone of Missouri and Illinois”, Contr. Walker Mus., 2, 219290.Google Scholar
Cooper, B. N., 1953. “Trilobites from the Lower Champlainian formations of the Appalachian Valley”, Geol. Soc. Amer., Mem. 55, 169.Google Scholar
Cooper, G. A., and Kindle, C. H., 1936. “New Brachiopods and Trilobites from the Upper Ordovician of Percé, Quebec”, J. Paleont., 10, 348372.Google Scholar
Cox, I., 1933. “Richmondian Trilobites from Akpatok Island”, Geol. Mag., 70, 359373.CrossRefGoogle Scholar
Holm, G., 1886. “Die Ostbaltischen Illæniden”, Acad. Imp. des Sci. St.–Pétersbourg Mém., ser. 7, 33, No. 8, 1173.Google Scholar
Lamont, A., 1935. “The Drummuck Group, Girvan: A Stratigraphical Revision, with Descriptions of New Fossils from the Lower Part of the Group”, Trans. Geol. Soc. Glasg., 19, 288334.CrossRefGoogle Scholar
Lapworth, C., 1882. “The Girvan Succession”, Quart. J. Geol. Soc. Lond., 38, 537666.CrossRefGoogle Scholar
Murchison, R. I., 1851. “On the Silurian Rocks of the South of Scotland”, Quart. J. Geol. Soc. Lond., 7, 137178.CrossRefGoogle Scholar
Nicholson, H. A., and Etheridge, R., 1878. A monograph of the Silurian Fossils of the Girvan District in Ayrshire, Fasc. 1, London.Google Scholar
Portlock, J. E., 1843. Report on the Geology of the County of Londonderry and parts of Tyrone and Fermanagh, Dublin and London.Google Scholar
Raymond, P. E., and Narraway, J. E., 1908. “Notes on Ordovician Trilobites: Illænidæ from the Black River limestone near Ottawa, Canada”, Ann. Carneg. Mus., 55, 242255.CrossRefGoogle Scholar
Reed, F. R. C., 19031935. “The Lower Palæozoic Trilobites of the Girvan District, Ayrshire”, Palæontog. Soc. [Monogr.], 1903, pt. 1, 148; 1904, Ibid., pt. 2, 49–96; 1906, Ibid., pt. 3, 97–186; 1914, Ibid., suppl. 1–56; 1931, Ibid., suppl. 2, 1–30; 1935, Ibid., suppl. 3, 1–64.Google Scholar
Salter, J. W., 1864. “A monograph of the British trilobites”, Palæontogr. Soc. [Monogr.], pt. 1, 180.CrossRefGoogle Scholar
Schmidt, Fr., 18811907. “Revision der Ostbaltischen silurischen Trilobiten”, Acad. Imp. des Sci. St.-Pétersbourg Mém., 1881, ser. 7, 30, No. 1, 1237; 1885, Ibid., ser. 7, 33, No. 1, 1–127; 1894, Ibid., ser. 7, 42, No. 5, 1–93.Google Scholar
Schuchert, C., and Cooper, G. A., 1930. “Upper Ordovician and Lower Devonian Stratigraphy and Paleontology of Percé, Quebec”, Part 11, Amer. J. Sci., 20, 365392.CrossRefGoogle Scholar
Thomson, Wyville, 1857. “On some species of Acidaspis from the Lower Silurian Beds of the South of Scotland”, Quart. J. Geol. Soc. Lond., 13, 206210.CrossRefGoogle Scholar
Thorslund, P., 1940. “On the Chasmops Series of Jemtland and Södermanland (Tvären)”, Sverig. geol. Unders Afh. (C), 436.Google Scholar
Törnquist, S. L., 1884. “Undersökningar öfver Siljansområdets trilobitfauna”, Sverig. geol. Unders. Afh. (C), 66.Google Scholar
Warburg, E., 1925. “The Trilobites of the Leptæna Limestone in Dalarne”, Bull. geol. Instn. Univ. Upsala, 17, 1446.Google Scholar
Warburg, E., 1939. “The Swedish Ordovician and Lower Silurian Lichidæ”, K. Svensk. Vetensk. Akad., 17, 4, 1162.Google Scholar
Whittington, H. B., 1941. “Silicified Trenton Trilobites”, J. Paleont., 15, 492522.Google Scholar
Whittington, H. B., 1950. “A monograph of the British Trilobites of the family Harpidæ”, Palæontogr. Soc. [Monogr.], 155.Google Scholar