Inoceramid bivalves from the Maastrichtian of the Western Fore-Balkan Mts (Bulgaria)

Article in Press
Pages: 
pp. 31-52
Faculty of Geology and Geography, Department of Geology, Palaeontology and Fossil Fuels, Sofia University “St Kliment Ohridski”, 15 Tsar Osvoboditel Blvd, 1513 Sofia, Bulgaria
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
Abstract: 

Taxonomic descriptions of newly recorded inoceramid species from the Maastrichtian of the Western Fore-Balkan Mountains (Bulgaria) are presented. The following taxa have been determined: Cataceramus subcircularis (Meek, 1876); Cataceramus palliseri (Douglas, 1942); Cataceramus barabini (Morton, 1834); Cataceramus? glendivensis Walaszczyk, Cobban and Harries, 2001; Cataceramus? cf. bebahoensis (Sornay, 1973); Cataceramus aff. goldfussianus (d’Orbigny, 1847); Trochoceramus tenuiplicatus (Tzankov, 1981); Endocostea typica Whitfield, 1880; Endocostea jolkicevi Walaszczyk, Odin and Dhondt, 2002; Endocostea sp. aff. E. coxi (Reyment, 1955); and “Inoceramushowletti Walaszczyk, Kennedy and Klinger, 2009. The present record allowed two lower Maastrichtian inoceramid zones, namely the Endocostea typica and Trochoceramus radiosus zones, to be indicated. The material allows for correlation with the Northwestern and Boreal areas of Europe and elsewhere.

Keywords: 

inoceramid bivalves, Maastrichtian, Western Fore-Balkan Mts, Bulgaria

VOLUME 49 (1)/April 2020

Bulgarian Geological Society, Acad. G. Boncev Str., Bl. 24, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Boncev Str., Bl. 24, 1113 Sofia, Bulgaria
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Department of Mineralogy and Petrography, University of Mining and Geology “St Ivan Rilski”, 1700 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Boncev Str., Bl. 24, 1113 Sofia, Bulgaria

Faculty of Geology and Geography, Department of Geology, Palaeontology and Fossil Fuels, Sofia University “St Kliment Ohridski”, 15 Tsar Osvoboditel Blvd, 1513 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Faculty of Science, Department of Geology, Ferdowsi University of Mashhad, Mashhad, Iran
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Faculty of Science, Department of Geology, Ferdowsi University of Mashhad, Mashhad, Iran
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Faculty of Science, Department of Geology, Ferdowsi University of Mashhad, Mashhad, Iran
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Faculty of Science, Department of Geology, Ferdowsi University of Mashhad, Mashhad, Iran