Representatives of the Toarcian ammonite genera Osperleioceras Krimholz, 1957 and Phlyseogrammoceras Buckman, 1901 in Bulgaria

Pages: 
pp. 41-50
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
Abstract: 

The following taxa of the species group, belonging to the genera Osperleioceras and Phlyseogrammoceras are described and figured for the first time in this country: Osperleioceras bicarinatum (Zieten, 1831), Phlyseogrammoceras dispansum evolutum subsp. n., P. maubeugei sp. n., P. bleicheri Maubeuge, 1949. The Bulgarian Phlyseogrammoceras dispansum Zone is characterized by species of Phlyseogrammoceras for the first time.

Л. Методиев, И. Сапунов. Представители тоарских аммонитных родов Osperleioceras Krimholz, 1957 и Phlyseogrammoceras Buckman, 1901 в Болгарии. В первы раз в этой стране были описаны и фигурираны следующие таксоны видовой группы, которые принадлежат родам Osperleioceras и Phlyseogrammoceras: Osperleioceras bicarinatum (Zieten, 1831), Phlyseogrammoceras dispansum evolutum subsp. n., P. maubeugei sp. n., P. bleicheri Maubeuge, 1949. В первы раз болгарская зона Phlyseogrammoceras dispansum была характеризирована видами Phlyseogrammoceras.

Keywords: 

Lower Jurassic (Upper Toarcian) ammonites, taxonomy, biostratigraphy, Bulgaria

VOLUME 29 (3-4)/December 1999

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

National Museum of Natural History, Bulgarian Academy of Sciences, 1000 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria