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Article Dans Une Revue Journal of Nannoplankton Research Année : 2021

Eoconusphaera hallstattensis sp. nov. and a review of the Rhaetian genus Eoconusphaera

Eoconusphaera hallstattensis sp. nov. et revision du genre Eoconusphaera du Rhaetian

Résumé

The genus Eoconusphaera is among the few calcareous nannofossil genera that occur in the Upper Triassic. The calcareous nannofossil assemblages of three Rhaetian sections-two from the Austrian Northern Calcar-eous Alps and one from offshore northwestern Australia-were studied using scanning electron and/or transmitted-light microscopy. Significant structural differences were observed in the inner structures of conical Rhaetian forms belonging to Eoconusphaera, which prompted a revision of Eoconusphaera zlambachensis and the description of a new species, E. hallstattensis sp. nov.
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Dates et versions

hal-03986488 , version 1 (13-02-2023)

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  • HAL Id : hal-03986488 , version 1

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Isaline Demangel, Richard Howe, Silvia Gardin, Sylvain Richoz. Eoconusphaera hallstattensis sp. nov. and a review of the Rhaetian genus Eoconusphaera. Journal of Nannoplankton Research, 2021, 39 (1), pp.77-87. ⟨hal-03986488⟩
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