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

Summary, in English

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 Calcareous Alps and one from offshore north-western 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.

• Author: Isaline Demangel; Sylvain Richoz; Silvia Gardin; Richard Howe
• Department/s: Lithosphere and Biosphere Science
• Publishing year: 2021-08-01
• Language: English
• Pages: 77-87
• Publication/Series: Journal of Nannoplankton Research
• Volume: 36
• Issue: 1
• Links: https://ina.tmsoc.org/JNR/online/39/Demangel%20et%20al%202021%20JNR%20Eoconusphaera.pdf
• Document type: Journal article
• Topic: Geology
• Keywords: Calcareous nannofossils; Upper Triassic; Rhaetian; Nannoliths; Coccoliths; Eoconusphaera zlambachensis; Eoconusphaera hallstattensis; Tethys Ocean
• Status: Published
• ISBN/ISSN/Other: ISSN: 1210-8049