Record details

    Contribution to the knowledge of some small Early Barremian ammonites from the Silesian Unit (Outer Carpathians, Czech Republic)
Statement of responsibility
    Zdeněk Vašíček, Petr Klajmon
    Klajmon, Petr
    Vašíček, Zdeněk
Source title - serial
    Věstník Českého geologického ústavu (Bulletin of the Czech Geological Survey)
    Vol. 73, no. 4
    p. 331-342
    4 obr., 2 pl., 2 s.bibl.
    České resumé
    Zkr. název ser.: Věst. Čes. geol. Úst. (Bull. Czech geol. Surv.)
Subject group
    flyšové pásmo Západních Karpat
    nový taxon
    slezská jednotka
Geographical name
    Soběšovice (Frýdek-Místek)
Abstract (in english)
   In the framework of many years' biostratigraphic research of Lower Cretaceous deposits of the Silesian Unit in the Outer (Flysch) Carpathians in the territory of the Czech Republic, a unique ammonite locality has been found at the village of Soběšice in the Český Těšín area (belonging to the Těšín partial nappe) recently. In grey shaly deposits in the faunistic horizon of a negligible thickness, pyrite steinkerns of ammonites with preserved sutures partly occur in addition to shell deformed prevailingly. About 74% of collected ammonites represented altogether by 17 species belong to the representatives of the suborder Ancyloceratina. Of them, almost 86% can be assigned to the subfamily Leptoceratoiidinae. The number as well as the variety of the mentioned subfamily in the locality is documented by 5 genera and 6 species, of which Josticeras wiedmanni represents a new genus and simultaneously a new species. For Leptoceratoidinae an opportunistic strategy has been suggested.
   The original environment of the ammonite association under study must have been specific conditions of the area of a deeper shelf. From here, accumulated shells were redeposited into the basinal environment by the turbiditic current. According to the whole spectrum of ammonites, the stratigraphic assignation of the studied horizon into the upper part of the Early Barremian can be considered, namely to the Caillaudianus Zone
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
Entered date
    18. 2. 2008
Import date
    8. 8. 2012