Publisher © Czech Geological Survey, ISSN: 2336-5757 (online), 0514-8057 (print)

Boundary intervals of graptolite biozones in the Klabava Formation (Ordovician, Prague Basin)


Petr Kraft, Jaroslav Kraft

Geoscience Research Reports 37, 2004 (GRR for 2003), pages 25–27

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Stratigraphic ranges of graptolites with respect to the biozone boundaries in the Klabava Formation are discussed. Two stratigraphie intervals are proposed as new informal stratigraphie units: Interval between Holograptus tardibrachiatus and Azygograptus ellesi-Tetragraptus reclinatus abbreviatus zones and Interval between A. ellesi-T. reclinatus abbreviatus and Corymbograptus retroflexus zones.