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Inoceramids and associated ammonite faunas from the uppermost Turonian−lower Coniacian (Upper Cretaceous) of the Anaipadi–Saradamangalam region of the Cauvery Basin, south-east India

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cris.lastimport.scopus2024-02-12T20:33:37Z
dc.abstract.enThe lower (but not lowermost) part of the Upper Cretaceous Anaipadi Formation of the Trichinopoly Group in the area between Kulatur, Saradamangalam and Anaipadi, in the south-western part of the Cauvery Basin in southeast India yielded rich inoceramid and ammonite faunas. The ammonites: Mesopuzosia gaudama (Forbes, 1846), Damesites sugata (Forbes, 1846), Onitschoceras sp., Kossmaticeras (Kossmaticeras) theobaldianum (Stoliczka, 1865), Lewesiceras jimboi (Kossmat, 1898), Placenticeras kaffrarium Etheridge, 1904, and Pseudoxybeloceras (Schlueterella) sp., are characteristic of the Kossmaticeras theobaldianum Zone. The absence of Peroniceras (P.) dravidicum (Kossmat, 1895) indicates the presence of only lower part of this zone, referred to the nominative Kossmaticeras theobaldianum Subzone at the localities studied. The inoceramids present are Tethyoceramus madagascariensis (Heinz, 1933) and Cremnoceramus deformis erectus (Meek, 1877), recorded for the first time from the region. The latter dates the studied interval as early early Coniacian, and allows, for the first time, direct chronostratigraphic dating of the Tethyoceramus madagascariensis Zone, and consequently also of the Kossmaticeras theobaldianum Subzone. As inoceramids occur in the middle part of the ammonite-rich interval, the Kossmaticeras theobaldianum Subzone may be as old as latest Turonian and not younger than early early Coniacian. The base of the Coniacian lies in the lower, but not lowermost part of the Anaipadi Formation. Both inoceramids and ammonites represent taxa known from Madagascar and South Africa.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorWalaszczyk, Ireneusz
dc.contributor.authorKennedy, William James
dc.contributor.authorParanjape, Amruta R.
dc.date.accessioned2024-01-25T04:19:37Z
dc.date.available2024-01-25T04:19:37Z
dc.date.issued2018
dc.description.financeNie dotyczy
dc.description.number4
dc.description.volume68
dc.identifier.doi10.1515/AGP-2018-0036
dc.identifier.issn0001-5709
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/109355
dc.identifier.weblinkhttp://journals.pan.pl/dlibra/publication/125965/edition/109903/content
dc.languageeng
dc.pbn.affiliationearth and related environmental sciences
dc.relation.ispartofActa Geologica Polonica
dc.relation.pages663-687
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.subject.enUpper Cretaceous
dc.subject.enTuronian
dc.subject.enConiacian
dc.subject.enCauvery Basin
dc.subject.enSE India
dc.subject.enInoceramids
dc.subject.enAmmonites
dc.subject.enBiostratigraphy
dc.subject.enStratigraphic correlation
dc.titleInoceramids and associated ammonite faunas from the uppermost Turonian−lower Coniacian (Upper Cretaceous) of the Anaipadi–Saradamangalam region of the Cauvery Basin, south-east India
dc.typeJournalArticle
dspace.entity.typePublication