Boundary intervals of graptolite biozones in the Klabava Formation (Ordovician, Prague Basin)
Geoscience Research Reports 37, 2004 (GRR for 2003),
pages 25–27
Abstract
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.