In recent years, conchostracan biostratigraphy has become a popular tool for the recognition of the Permian Triassic boundary and for the chronostratigraphic subdivision of the Triassic in intracontinental settings, including also the bone-hearing Keuper strata of Poland. The ambiguous nature of the new bio-chronostratigraphic approach was characterized in a case study of the Permian Triassic boundary interval. The most important problems were: (I) the lack of documentation of the index species, (2) the indirect correlation with the conodont stratigraphy in marine reference sections through the sporomorph spectra, (3) the lack of definition and documentation of supporting palynologic zones, and (4) difficulties in reliable taxonomic determination of Conchostraca. Testing and, if necessary, revision of the zonation by several independent research groups is suggested.
机构:
State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences,China University of GeosciencesState Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences,China University of Geosciences
Ruoyu Bai
Xu Dai
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State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences,China University of GeosciencesState Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences,China University of Geosciences
Xu Dai
Haijun Song
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State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences,China University of GeosciencesState Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences,China University of Geosciences
机构:
Novosibirsk State Univ, Ul Pirogova 1, Novosibirsk 630090, Russia
Russian Acad Sci, Siberian Branch, Brinfimuk Inst Petr Geol & Geophys, Pr Akad Koptyuga 3, Novosibirsk 630090, RussiaNovosibirsk State Univ, Ul Pirogova 1, Novosibirsk 630090, Russia
Eliseev, A. A.
Shcherbakova, V. V.
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Russian Acad OfSci, Dept Schmidt Inst Phys Earth, Borok Geophys Observ, Pos Borok 142, Yaroslavl Obl 152742, RussiaNovosibirsk State Univ, Ul Pirogova 1, Novosibirsk 630090, Russia
Shcherbakova, V. V.
Metelkin, D., V
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Novosibirsk State Univ, Ul Pirogova 1, Novosibirsk 630090, Russia
Russian Acad Sci, Siberian Branch, Brinfimuk Inst Petr Geol & Geophys, Pr Akad Koptyuga 3, Novosibirsk 630090, RussiaNovosibirsk State Univ, Ul Pirogova 1, Novosibirsk 630090, Russia
Metelkin, D., V
Mikhaltsov, N. E.
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Novosibirsk State Univ, Ul Pirogova 1, Novosibirsk 630090, Russia
Russian Acad Sci, Siberian Branch, Brinfimuk Inst Petr Geol & Geophys, Pr Akad Koptyuga 3, Novosibirsk 630090, RussiaNovosibirsk State Univ, Ul Pirogova 1, Novosibirsk 630090, Russia
Mikhaltsov, N. E.
Zhidkov, G., V
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Russian Acad OfSci, Dept Schmidt Inst Phys Earth, Borok Geophys Observ, Pos Borok 142, Yaroslavl Obl 152742, RussiaNovosibirsk State Univ, Ul Pirogova 1, Novosibirsk 630090, Russia
Zhidkov, G., V
Abashev, V. V.
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Novosibirsk State Univ, Ul Pirogova 1, Novosibirsk 630090, Russia
Russian Acad Sci, Siberian Branch, Brinfimuk Inst Petr Geol & Geophys, Pr Akad Koptyuga 3, Novosibirsk 630090, RussiaNovosibirsk State Univ, Ul Pirogova 1, Novosibirsk 630090, Russia
Abashev, V. V.
Rogov, A. M.
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Kazan Fed Univ, Inst Geol & Petr Technol, Ul Kremlevskaya 4-5, Kazan 420111, RussiaNovosibirsk State Univ, Ul Pirogova 1, Novosibirsk 630090, Russia
机构:
Middle E Tech Univ, Dept Geol Engn, Marine Micropaleontol Res Unit, TR-06531 Ankara, TurkeyMiddle E Tech Univ, Dept Geol Engn, Marine Micropaleontol Res Unit, TR-06531 Ankara, Turkey
Ünal, E
Altiner, D
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Middle E Tech Univ, Dept Geol Engn, Marine Micropaleontol Res Unit, TR-06531 Ankara, TurkeyMiddle E Tech Univ, Dept Geol Engn, Marine Micropaleontol Res Unit, TR-06531 Ankara, Turkey
Altiner, D
Yilmaz, IÖ
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Middle E Tech Univ, Dept Geol Engn, Marine Micropaleontol Res Unit, TR-06531 Ankara, TurkeyMiddle E Tech Univ, Dept Geol Engn, Marine Micropaleontol Res Unit, TR-06531 Ankara, Turkey
Yilmaz, IÖ
Özkan-Altiner, S
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Middle E Tech Univ, Dept Geol Engn, Marine Micropaleontol Res Unit, TR-06531 Ankara, TurkeyMiddle E Tech Univ, Dept Geol Engn, Marine Micropaleontol Res Unit, TR-06531 Ankara, Turkey