Taxonomical re-investigation of Sarmatian diatoms from NE Bulgaria, hosted in the Pantocsek Collection (Budapest)

Pages: 
pp. 39-50
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
Hungarian Natural History Museum, Department of Botany, 1476 Budapest, P.O. Box 222, Hungary
Abstract: 

In the present paper, material collected from the vicinity of Balchik (NE Bulgaria) and housed in the Pantocsek Collection at the Hungarian Natural History Museum (Budapest) has been studied. Ten characteristic diatom species of regional and local importance were revised using scanning electron microscopy in order to clarify their identity. The purpose of the present paper is to elaborate on and photographically document the morphological variability of the examined taxa, and to compare the species composition with previously published data. The presence of Surirella comis Schmidt has been recognized for the first time from Bulgaria, as either fossil or recent form. Species characteristic for the association of the Achnathes baldjikii var. podolica Subzone have been indicated. Its stratigraphic range is within the Sarmatian Stage (Bessarabian Substage).

Keywords: 

Diatoms, Sarmatian Stage (Bessarabian Substage), Balchik, Bulgaria, Pantocsek Collection, Budapest

VOLUME 44 (1-3)/December 2015

University of Mining and Geology, Department of Geology and Geo-Information, Studentski Grad,“Prof. Boyan Kamenov” St., Sofia 1700; Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev St., Bl. 24, 1113 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev St., Bl. 24, 1113 Sofia, Bulgaria
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University of Mining and Geology, Department of Geology and Geo-Information, Sofia; Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev St., Bl. 24, 1113 Sofia, Bulgaria
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Westphälische Wilhelms-Universität, Institut für Geologie und Paläontologie, Corrensstr. 24, D-48149 Münster, Germany

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Hungarian Natural History Museum, Department of Botany, 1476 Budapest, P.O. Box 222, Hungary

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev, Bl.24, 1113 Sofia; Institute of Geochemistry and Petrology, ETH-Zurich
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Institute of Mineralogy and Crystallography, Bulgarian Academy of Sciences, Acad. G. Bonchev, Bl.7, 1113 Sofia
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Institute of Geochemistry and Petrology, ETH-Zurich
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Institute of Mineralogy and Crystallography, Bulgarian Academy of Sciences, Acad. G. Bonchev, Bl.7, 1113 Sofia

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev, Bl.24, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev, Bl.24, 1113 Sofia, Bulgaria