Journal
BULLETIN OF GEOSCIENCES
Volume 88, Issue 2, Pages 265-282Publisher
CZECH GEOLOGICAL SURVEY
DOI: 10.3140/bull.geosci.1347
Keywords
foraminifers; Devonian; Late Famennian; Tournaisian; Early Carboniferous; South Urals; biodiversity
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Funding
- Russian Foundation for Basic Research [10-05-01076]
- IGCP project [596]
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The taxonomic diversity of foraminifers from the Devonian-Carboniferous boundary beds was studied in the key sections on the western slope of the South Urals in Russia and from Mugodzhary in Kazakhstan. These sections are mainly composed of marine carbonates, apparently deposited in a shallow-water environment. The boundary interval contains 111 species belonging to 30 genera within the foraminiferal zones Quasiendothyra communis, Q. kobeitusana, Tournayellina beata pseudobeata, Earlandia minima, and Chernyshinella disputabilis of the Russian General Stratigraphic Scale. Maximum diversification is recorded in the Q. kobeitusana Zone, and minimum species diversity is observed in the Earlandia minima Zone.
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