New calcareous nannofossil taxa from the Ypresian (Early Eocene) of the North Sea Basin and the Turan Platform in West Kazakhstan

Twelve taxa, identified in Lower Eocene outcrop and borehole successions of the North Sea Basin and at Aktulagay in western Kazakhstan, are described here for the first time: Zygrhablithus bijugatus galeiformis subsp. nov., Ellipsolithus irregulariporus sp. nov., Ellipsolithus heilmannclausenii sp. nov., Pontosphaera megapachydisca sp. nov., Dictyococcites chriskingii sp. nov., Toweius brusselensis sp. nov., Blackites aktulagayensis sp. nov., Blackites rugosus sp. nov., Blackites thiedei sp. nov., Chiphragmalithus vandenberghei sp. nov., Lophodolithus mytiliformis sp. nov. and Nannoturba jolot... Mehr ...

Verfasser: Steurbaut, E.
Dokumenttyp: Artikel
Erscheinungsdatum: 2011
Schlagwörter: Ypresian / Haptophyta / ANE / Belgium / East Coast / Vlakte van de Raan / Asia / Kazakhstan / North Sea
Sprache: Englisch
Permalink: https://search.fid-benelux.de/Record/base-29349397
Datenquelle: BASE; Originalkatalog
Powered By: BASE
Link(s) : https://www.vliz.be/imisdocs/publications/252479.pdf

Twelve taxa, identified in Lower Eocene outcrop and borehole successions of the North Sea Basin and at Aktulagay in western Kazakhstan, are described here for the first time: Zygrhablithus bijugatus galeiformis subsp. nov., Ellipsolithus irregulariporus sp. nov., Ellipsolithus heilmannclausenii sp. nov., Pontosphaera megapachydisca sp. nov., Dictyococcites chriskingii sp. nov., Toweius brusselensis sp. nov., Blackites aktulagayensis sp. nov., Blackites rugosus sp. nov., Blackites thiedei sp. nov., Chiphragmalithus vandenberghei sp. nov., Lophodolithus mytiliformis sp. nov. and Nannoturba jolotteana sp. nov. In addition, one new taxonomic combination is proposed: Blackites dupuisii (STEURBAUT, 1991) new. com. Most of the new species have short stratigraphic ranges and, consequently, have great potential for high-resolution biostratigraphy and for refined dating of sedimentary sequences from middle to high latitudes of the northern hemisphere.