Hostname: page-component-78c5997874-fbnjt Total loading time: 0 Render date: 2024-11-08T04:29:25.408Z Has data issue: false hasContentIssue false

An outline of the stratigraphy and palaeontology of the Ordovician rocks of Central Portugal

Published online by Cambridge University Press:  01 May 2009

W. I. Mitchell
Affiliation:
Geological Survey of Northern Ireland, 20 College Gardens, Belfast BT9 6BS

Summary

Well-preserved brachiopod faunas collected from four Ordovician horizons range in age from Upper Llanvirn to Lower Caradoc. The generically restricted Upper Llanvirn and Lower Llandeilo assemblages are associated with diagnostic graptolites. In contrast the Upper Llandeilo and Lower Caradoc assemblages are more diverse and correlate well with faunas from the more precisely dated Chrustenice Substage in Bohemia. Two new brachiopod genera Apollonorthis and Cacemia are described.

Type
Articles
Copyright
Copyright © Cambridge University Press 1974

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

Arnaud, A. & Pillet, J. 1971. Sur I'existence de Caradocien à trilobites dans le synclinal de Saint-Julien de Vouvantes-Angers (sud-est du Massif Armoricain). Mém. Bureau de Recherches Géologiques et Minières, 73, 237–63, pls 1–2.Google Scholar
Dean, W. T. 1966. A revision of the Ordovician trilobite genus Plaesiacomia Hawle and Corda, 1847. Sb. ndr. Mus. Praze, Prague, [22] B, 4, 133–42, pls 1–2.Google Scholar
Delgado, J. F. N. 1908. Système silurique du Portugal. Mem. Comm. Serv. Geol. Portugal, Lisbon. 240 pp., 8 pls.Google Scholar
Havlíček, V. 1950. The Ordovician Brachiopoda from Bohemia. [In Czech. and English] Rozpr. ústred Úst. geol. 13, 13 pls.Google Scholar
Havlíček, V. 1967. Brachiopods of the suborder Strophomenidina in Czechoslovakia. Rozpr. ústred Úst geol. 33, 52 pls.Google Scholar
Havlíčiek, V. 1968. New brachiopods in the Lower Caradoc of Bohemia. Vest. ústřed Úst. geol. 43, 123–5, pls 1–2.Google Scholar
Havlíček, V. 1970. Heterorthidae (Brachiopoda) in the Mediterranean Province. Sb. geol. ved., rada P (paleont.), sv. 12, 739, 3 figs, pls 1–11. phot., bibl.Google Scholar
Havlíček, V. 1971. Brachiopodes de l'Ordovicien du Maroc. Notes Mém. du Serv. geol. 230, 1135, pls 1–26.Google Scholar
Havlíček, V. & Vanek, J. 1966. The biostratigraphy of the Ordovician of Bohemia. Sb. geol. ved. 8, 769.Google Scholar
Kerforne, M. F. 1900. Description de trois nouveaux trilobites de l'Ordovicien de Bretagne. Bull. Soc. géol. Fr. [3] 28, 783–91, p1. 13.Google Scholar
Ribeiro, C. 1853. On the Carboniferous and Silurian Formations of Bussaco in Portugal. With notes and a description of the animal remains by Sharpe, D. Salter, J. W. and Jones, T. R. and an account of the vegetable remains by C. J. F. Bunbury. Q. Jl geol. Soc. 9, 135–61, vii–ix. Instituto Coimbra, vol. 1 142–7, 181, 182, 213216, 244–7.CrossRefGoogle Scholar
Schuchert, C. & Cooper, G. A. 1931. Synopsis of the brachiopod genera of the suborders Orthoidea and Pentameroidea, with notes on the Telotremata. Am. J. Sci., ser. 5, 22, 241–51.CrossRefGoogle Scholar
Schuchert, C. & Cooper, G. A. 1932. Brachiopod genera of the suborders Orthoidea and Pentameroidea. Mem. Peabody Mus. nat. Hist., New Haven 4, 1270, pls 1–29.Google Scholar
Schuchert, C. & Le Vene, C. M. 1929. New names for brachiopod homonyms. Am. J. Sci. 17, 119–22.CrossRefGoogle Scholar
Waagen, W. H. 1884. Salt Range fossils. Part 4 (2): Brachiopoda. Palaeont. Indica, Mem., ser. 13, 1, 329770, pls 25–86.Google Scholar
Williams, A. et al. 1972. A Correlation of Ordovician rocks in the British Isles. Spec. Rep. geol. Soc., London. 74 pp.Google Scholar
Williams, A. 1974. Ordovician brachiopods from the Shelve district, Shropshire. Bull. Br. Mus. nat. Hist. A. (In the Press.)Google Scholar
Woodward, S. P. 18511856. A Manual of the Mollusca, or Rudimentary Treatise of Recent and Fossil Shells, 3 parts, pp. 1486. London.Google Scholar