Hostname: page-component-78c5997874-fbnjt Total loading time: 0 Render date: 2024-11-10T17:41:50.420Z Has data issue: false hasContentIssue false

Upper Ordovician graptolites from the top Lower Hartfell Shale Formation (D. clingani and P. linearis zones) near Moffat, southern Scotland

Published online by Cambridge University Press:  03 November 2011

S. Henry Williams
Affiliation:
Department of Geology, University of Glasgow, Glasgow G12 8QQ, Scotland

Abstract

The top 9 m of Lower Hartfell Shale has been collected in 10 cm samples through a continuous sequence on the North Cliff at Dob's Linn. The boundary between the Dicranograptus clingani and Pleurograptus linearis zones is denned for the first time in a measured section, 5.0 m below the top of the Lower Hartfell Shale, with the excavation of the North Cliff proposed as stratotype. The late D. clingani Zone is characterised by Dicranograptus ramosus?, Dicellograptus moffatensis, D. flexuosus [= D. forchhammeri], Climacograptus dorotheus, Glyptograptus daviesi sp. nov., Diplograptus? pilatus sp. nov., Neurograptus margaritatus and Corynoides calicularis. The P. linearis Zone is characterised by Pleurograptus linearis linearis, Amphigraptus divergens divergens, Leptograptus capillaris, Dicellograptus elegans elegans, D. pumilis, D. carruthersi and Climacograptus tubuliferus. A range chart is provided and an attempt is made at a revised correlation of the Scottish succession with coeval zonal sequences in North America and Australia. Twenty-one taxa are described including the two new species noted above.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1982

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Berry, W. B. N. 1960. Graptolite faunas of the Marathon region, west Texas. PUBL BUR ECON GEOL UNIV TEXAS 6005, 1179.Google Scholar
Bolton, T. E. 1960. Catalogue of type invertebrate fossils of the Geological Survey of Canada. Vol. 1, 1215. Dept. of Mines and Technical Surveys, Canada.CrossRefGoogle Scholar
Briggs, D. E. G. & Williams, S. H. 1981. The restoration of flattened fossils. LETHAIA 14, 157–64.CrossRefGoogle Scholar
Bulman, O. M. B. 1929. The genotypes of the genera of graptolites. ANN MAG NAT HIST 4, 169–85.CrossRefGoogle Scholar
Bulman, O. M. B. 1931. South American graptolites with special reference to the Nordenskiöld Collection. ARK ZOOL 22A(3), 1111.Google Scholar
Bulman, O. M. B. 1955. In Moore, R. C. (ed.) Treatise on Invertebrate Paleontology. Part V, Graptolithina, with sections on Enteropneusta and Pterobranchia. Geol. Soc. Am. & Univ. Kansas Press.Google Scholar
Bulman, O. M. B. 1970. In Teichert, C. (ed.) Treatise on invertebrate Paleontology. Part V, Graptolithina, with sections on Enteropneusta and Pterobranchia, 2nd edn.Geol. Soc. Am. & Univ. Kansas Press.Google Scholar
Carruthers, W. 1958. Dumfriesshire graptolites with descriptions of three new species. PROC R PHYS SOC EDINBURGH 1, 466–70.Google Scholar
Carruthers, W. 1859. On the graptolites from the Silurian shales of Dumfriesshire, with a description of three new species. ANN MAG NAT HIST 3, 23–6.Google Scholar
Carruthers, W. 1867. Graptolites: their structure and position. INTELL OBSERVER 11 365–74.Google Scholar
Carruthers, W. 1868. A revision of the British graptolites, with descriptions of the new species and notes on their affinities. GEOL MAG 5, 125–33.CrossRefGoogle Scholar
Carter, C. & Churkin, M. 1977. Ordovician and Silurian graptolite succession in the Trail Creek area, central Idaho—a graptolite zone reference section. PROF PAP U S GEOL SURV 1020 133.Google Scholar
Churkin, M.Carter, C. & Eberlein, G. D. 1971. Graptolite succession across the Ordovician-Silurian boundary in south-eastern Alaska. Q J GEOL SOC LONDON 126, 319–30.CrossRefGoogle Scholar
Davies, K. A. 1929. Notes on the graptolite faunas of the Upper Ordovician and Lower Silurian. GEOL MAG 66 127.CrossRefGoogle Scholar
Elles, G. L. & Wood, E. M. R. 19011918. A monograph of British graptolites. MONOGR PALAEONTOGR SOC LONDON.Google Scholar
Geinitz, H. B. 1852. Die Versteinerungen der Grauwackenformation. Heft 1. Graptolithen. Leipzig: Verlag Wilhelm Engelmann.Google Scholar
Gurley, R. R. 1896. North American graptolites; new species and vertical ranges. J GEOL 4, 63102.CrossRefGoogle Scholar
Hadding, A. 1915. Der mittlere Dicellograptusschiefer auf Bornholm. ACTA UNIV LUND (n.f. avd. 2) 11 (4), 140.Google Scholar
Hall, J. 1847. Descriptions of the organic remains of the lower division of the New York system. Palaeontology of New York, vol. 1.Google Scholar
Hall, J. 1859a. Descriptions and figures of the organic remains of the Lower Helderberg group and the Oriskany Sandstone. Palaeontology of New York, vol. 3.Google Scholar
Hall, J. 1859b. Notes upon the genus Grapfofithus. ANNU REP NEW YORK STATE CAB NAT HIST 12 4558.Google Scholar
Hall, J. 1865. Graptolites of the Quebec group. GEOL SURV CANADA, CANADIAN ORGANIC REMAINS, dec. 2.1151.Google Scholar
Hall, J. 1868. Introduction to the study of the Graptolitidae. ANNU REP NEW YORK STATE CAB NAT HIST 20, 169240.Google Scholar
Hall, T. S. 1902. The graptolites of New South Wales, in the collection of the Geological Survey. REC GEOL SURV NEW SOUTH WALES 7, 4959.Google Scholar
Hall, T. S. 1906. Reports on graptolites. A revision of the species from eastern Victoria. REC GEOL SURV VICTORIA 1, 266–78.Google Scholar
Harris, W. J. & Thomas, D. E. 1955. Victorian graptolites. Pt 13. Graptolites from the Wellington River, Pt 1. MIN GEOL J MELBOURNE 5, 3547.Google Scholar
Henningsmoen, G. 1948. Deep boring through Ordovician and Silurian strata at Kinnekulle, Västergötland. 4. The Tretaspis Series of the Kullatorp core. BULL GEOL INST UNIV UPSALA 32 374432.Google Scholar
Hisinger, W. 1837. Lethaea Svecica sue Petrificata Sveciae Iconibus et Characteribus Illustrata, Supplementum 1. Stockholm.Google Scholar
Hopkinson, J. 1871. On Dicellograpsus, a new genus of graptolite. GEOL MAG 8, 20–6.CrossRefGoogle Scholar
Ingham, J. K. 1974. The Moffat district. In Bassett, D. A., Ingham, J. K. & Wright, A. D. (eds). Ordovician System Symposium, field excursion guide to type and classical sections in Britain. Palaeontol. Assn 45–9.Google Scholar
Keller, B. M. 1956. Ordovician graptolites of the Chu Iliiski Mountains. ACAD SCI USSR STUD GEOL INST 1, 50102. [in Russian]Google Scholar
Koren', T. N., Sobolevskaya, R. F., Mikhaylova, N. F. & Tzai, D. T. 1979. New evidence on graptolite succession across the Ordovician-Silurian boundary in the Asian part of the U.S.S.R. ACTA PALAEONTOL POL 24 123–36.Google Scholar
Lapworth, C. 1873. On an improved classification of the Rhabdophora. GEOL MAG 10 500–4, 555–60.CrossRefGoogle Scholar
Lapworth, C. 1876. The Silurian System in the south of Scotland. In Armstrong, J.et al. (eds) Catalogue of Western Scottish Fossils. Glasgow.Google Scholar
Lapworth, C. 1877. The graptolites of County Down. PROC BELFAST NAT FIELD CLUB 125–44.Google Scholar
Lapworth, C. 1878. The Moffat Series. Q J GEOL SOC LONDON 34, 240346.CrossRefGoogle Scholar
M'Coy, F. 1850. On some genera and species of Silurian Radiata in the Collection of the University of Cambridge. ANN MAG NAT HIST 6, 270–90.Google Scholar
Mu, En-Zhi. 1950. On the occurrence of Pleurograptus in China. PALAEONTOL NOVIT 7, 14.Google Scholar
Mu, En-Zhiet al. 1980. Ordovician graptolite sequences and biogeographic regions in China. In Scientific papers on geology for international exchange, prepared for the 26th International Geological Congress. 4. Stratigraphy and Palaeontology. 3542. Beijing: Publishing House of Geology, [in Chinese with English summary]Google Scholar
Nicholson, H. A. 1867a. Graptolites of the Moffat Shale. GEOL MAG 4, 108–13.Google Scholar
Nicholson, H. A. 1867b. On a new genus of Graptolites, with note on reproductive bodies. GEOL MAG 4, 256–63.CrossRefGoogle Scholar
Nicholson, H. A. 1868. On the graptolites of the Coniston Flags; with notes on the British species of the genus Graptolites. Q J GEOL SOC LONDON 24, 521–45.CrossRefGoogle Scholar
Obut, A. M. & Sobolevskaya, R. F. 1964. Graptolity ordovika Taimyra. AKAD NAUK SSR, SIBIR OTDEL, INST GEOL GEOFIZ MINIST GEOL SSSR, NAUCHNO-ISSLEDOV INST GEOL ARTIKI, 186.Google Scholar
Přibyl, A. 1949. A revision of the Diplograptidae and Glossograptidae of the Ordovician of Bohemia. BULL INT ACAD TCHÉQUE SCI 60, 151.Google Scholar
Riva, J. 1969. Middle and Upper Ordovician graptolite faunas of St. Lawrence lowlands of Quebec, and of Anticosti Island. MEM AM ASSOC PETROL GEOL 12, 513–56.Google Scholar
Riva, J. 1974. A revision of some Ordovician graptolites of eastern North America. PALAEONTOLOGY LONDON 17, 140.Google Scholar
Riva, J. 1976. Climacograptus bicornis bicornis (Hall), its ancestor and likely descendants. In Bassett, M. G. (ed.) The Ordovician System: proceedings of a Palaeontological Association symposium, Birmingham, September 1974. 589619. Cardiff: Univ. Wales Press and Nat. Mus. Wales.Google Scholar
Ross, R. J. & Berry, W. B. N. 1963. Ordovician graptolites of the Basin Ranges in California, Nevada, Utah and Idaho. BULL U S GEOL SURV 1134, 177.Google Scholar
Ruedemann, R. 1908. Graptolites of New York: Pt. 2, graptolites of the higher beds. MEM NEW YORK STATE MUS 11, 1583.Google Scholar
Ruedemann, R. 1912. The lower Siluric shales of the Mohawk Valley. BULL NEW YORK STATE MUS 162, 1151.Google Scholar
Ruedemann, R. 1947. Graptolites of North America. MEM GEOL SOC AM 19, 1652.Google Scholar
Ruedemann, R. & Decker, C. E. 1934. The graptolites of the Viola Limestone. J PALEONTOL 8, 303–27.Google Scholar
Sherrard, K. M. 1954. Assemblages of graptolites in New South Wales. J PROC R SOC NEW SOUTH WALES 87, 73101.CrossRefGoogle Scholar
Skoglund, R. 1963. Uppermost Viruan and Lower Harjuan (Ordovician) stratigraphy of Västergötland and Lower Harjuan graptolite faunas of central Sweden. BULL GEOL INST UNIV UPPSALA 42 (45), 155.Google Scholar
Strachan, I. 1949. On the genus Corynoides Nicholson. GEOL MAG 86, 153–60.CrossRefGoogle Scholar
Strachan, I. 1969. A redescription of W. Carruthers' type graptolites. BULL BR MUS NAT HIST (GEOL) 17, 181206.Google Scholar
Strachan, I. 1971. A synoptic supplement to “A monograph of British graptolites by Miss G. L. Elles and Miss E. M. R. Wood”. MONOGR PALAEONTOGR SOC 125, 1130.CrossRefGoogle Scholar
Strachan, I. 1974. Further isolated graptolites from the Ordovician of Girvan. In Rickards, R. B., Jackson, D. E. & Hughes, C. P. (eds) Graptolite studies in honour of O. M. B. Bulman. SPEC PAP PALAEONTOL LONDON 13 99105.Google Scholar
Thomas, D. E. 1960. The zonal distribution of Australian graptolites; with a revised bibliography of Australian graptolites. J PROC R SOC NEW SOUTH WALES 94, 158.CrossRefGoogle Scholar
Toghill, P. 1970. Highest Ordovician (Hartfell Shales) graptolite faunas from the Moffat area, south Scotland. BULL BR MUS NAT HIST (GEOL) 19, 126.Google Scholar
Törnquist, S. L. 1891. Undersökningar öfver Siljansområdets graptoliter. LUNDS UNIV ARSSKR 26, 133.Google Scholar
Twenhofel, W. H. 1928. Geology of Anticosti Island. MEM GEOL SURV BRANCH CANADA 154, 1481.Google Scholar
VandenBerg, A. H. M. 1981. Victorian stages and graptolite zones. In Webby, B. D. (ed.) The Ordovician System in Australia, New Zealand and Antarctica. IUGS PUBL 6, 27.Google Scholar
Walters, M. 1977. Middle and Upper Ordovician graptolites from the St. Lawrence lowlands, Quebec, Canada. CAN J EARTH SCI 14 932–52.CrossRefGoogle Scholar
Williams, S. H. 1980. An excursion guide to Dob's Linn. PROC GEOL SOC GLASGOW 121/122, 1318.Google Scholar
Williams, S. H. 1981. Form and mode of life of Dicellograptus (Graptolithina). GEOL MAG 118, 401–8.CrossRefGoogle Scholar