Record details

    Zpráva o paleontologickém výzkumu šáreckého souvrství (střední ordovik, stupeň llanvirn) u Oseku u Rokycan (12-33 Plzeň)
Statement of responsibility
    Jana Slavíčková, Petr Budil
Other titles
    Research report on the paleontological investigations of the Šárka Formation (Middle Ordovician, Llanvirnian Stage) at Osek, near Rokycany, Czech Republic (12-33 Plzeň)
    Budil, Petr, 1969-
    Slavíčková, Jana
Source title - serial
    Zprávy o geologických výzkumech v roce 1999
    s. 135-137
    2 obr.
    Anglické resumé
    Obsahuje bibliografické odkazy
    Zkr. název ser.: Zpr. geol. Výzk. v Roce 1999.
Subject group
    ochrana přírody
    pražská pánev
Geographical name
    Osek (Rokycany)
Abstract (in english)
   An important artificial outcrop was studied in the neighbourhood of the village of Osek near Rokycany (western Bohemia), near Barrande's classical locality "Wosek". A very rich faunal association, consisting of trilobites, brachiopods, bivalves, graptolites, dendroids, hyolitids and echinoderms was found in the dark grey clay shales and siliceous nodules of the Šárka Formation (Middle Ordovician, Llanvirnian Stage). Its character is typical for the middle part (Corymbograptus retroflexus Zone) of this formation, but some species found belong to the rare ones. Faunal remains often accumulate into sharply limited linear structures. As a hypothesis for the origin of these structures is submitted an accumulation due to wave or current activity. On the contrary, the findings of complete bivalve shells, complete trilobite exoskeletons and exuviae in the moulting positions suggest at least partial autochthonous or paraautochthonous origin for this faunal association
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
Entered date
    6. 3. 2008
Import date
    8. 8. 2012