Trilobites of the Klabava Formation (Arenig), Prague Basin, Czech Republic: preliminary report

• Jana Bruthansova ^[1]
  1. [1] Palaeontological Department, National Museum, Czech Republic
• Localización: Serie correlación geológica, ISSN-e 1666-9479, ISSN 1514-4186, Vol. 17, Nº. 1, 2003
• Idioma: inglés
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• Resumen

  • The Barrandian area is situated in the Bohemian Massif, in the Czech Republic. It contains sediments and volcanics of three major and distinctly different tectono–sedimentary megacycles: Proterozoic, Cambrian, and Ordovician–Devonian. The Ordovician rocks are developed continuously from the Tremadoc to the top of the Ashgill (Figure 1).

    This paper deals with the trilobites of the Klabava Formation, which is of the Early/Middle Ordovician age (see Figure 1). It is composed of various successions of sediments (shales, siltstones, conglomerates, ferrolites) and volcanics (tuffites and, tuffs). Its fauna is dominated by brachiopod–rich assemblages (see Havlícek and Vanek (1966), Havlícek (1982) and Mergl, 1992). The trilobite specimens occur comparatively commonly at several stratigraphic levels, especially in the tuffs, tuffites, and greyish–green shales.

    Trilobites of the Klabava Formation have been studied for almost 100 years, e.g., by Holub (1911, 1912) and Mergl (1991). Also, some trilobites of this formation have been revised or figured by Prantl and Pribyl (1948), Vanek (1959), Marek (1961), Horný and Bastl (1970) Kraft (1972) Pek (1977) Pek and Vanek (1989), and others. The aim of this contribution is to shortly outline the trilobite assembages of the Klabava Formation of all trilobites occurring in the Klabava Formation integrating those that have been previously omitted.