Record details

    Ordovician-Silurian boundary graptolites of the Southern Alps, Austria
    Schönlaub, H. P.
    Štorch, Petr
Publication type
    článek v odborném periodiku
Source title - serial
    Bulletin of Geosciences
    Roč. 87, č. 4
    s. 755-766
    Projekt: IAA301110908, GA AV ČR3cav_un_auth*0254043
    Rozsah: 12 s. : WWW
Subject category
    Southern Alps (Austria)
Abstract (in english)
   Seven species of graptoloid graptolites are described from Hirnantian and lower Rhuddanian formations of the Austrian part of the Carnic and western Karavanke Alps. The Plocken Formation, of latest Ordovician (Hirnantian) age, yields the biozonal index graptolite Metabolograptus persculptus in the Cellon Reference Section and, tentatively, the Feistritzgraben Section. A distinctive graptolite assemblage indicating an earliest Silurian (early Rhuddanian) age comes from the Waterfall Section near Zollnersee Hutte. Along with the presence of the biozonal index Parakidograptus acuminatus and accompanying taxa, common Rickardsograptus? bifurcus (Ye) has been recorded - for the first time outside China.
   The absence of Neodiplograptus lanceolatus Storch & Serpagli, Normalograptus trifilis (Manck) and other easily recognizable lowermost Rhuddanian species which are dominant in this level throughout peri-Gondwanan Europe indicates the peculiar character of the acuminatus Biozone assemblage encountered in the Carnic Alps.
    AV ČR Brno, Geologický ústav
Contributor code
    AV ČR, GLÚ
Source format
Import date
    19. 3. 2014