Late Wenlock biostratigraphy and the Pristiograptus virbalensis group (Graptolithina) in Lithuania and the Holy Cross Mountains

• Autorzy: Radzevičius S.
• Języki publikacji: EN

Abstrakty

EN

Graptolites from Lithuania and the Holy Cross Mountains comprise a succession of the lundgreni, parvus (except for the Holy Cross Mts.), nassa, praedeubeli, deubeli and ludensis biozones of the upper Wenlock, the parvus, praedeubeli and deubeli biozones being recognized for the first time in Lithuania, where a graptolite-free interval may also be distinguished. P. virbalensis Paskevicius, 1974 and the virbalensis group are not widely known, and are discussed here. Analysis of P. virbalensis shows this to be an independent taxon, closely related to P. auctus. There are three species - P. virbalensis, P.jaegeri and P. auctus - in the virbalensis group.

Słowa kluczowe

EN

Holy Cross Mountains; Silurian; upper Wenlock; biostratigraphy; Graptolithina

• Wydawca: Państwowy Instytut Geologiczny - Państwowy Instytut Badawczy
• Czasopismo: Geological Quarterly
• Rocznik: 2006
• Tom: Vol. 50, No. 3
• Strony: 333--344
• Opis fizyczny: fot., mapki, tab., bibliogr. 40 poz.

Twórcy

autor

Radzevičius S.

• Department of Geology and Mineralogy, Vilnius University, M. K. Ćiurlionio 21/27, Vilnius, LT03I0I, Lithuania; Institute of Geology, University of Tartu, Vanemuise 46, Tartu 51014, Estonia,

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