Taxonomy:
Distinguishing features:
Parent taxon (Toweius): Typically medium-sized.(5-8 µm), elliptical to circular, central areas typically with a conjunct net and/or bars.
This taxon: Very small (2-5 µm), circular, with ca. 7 perforations
Farinacci & Howe catalog pages: T. oztunalii *
Search data:
LITHS: placolith, circular, CA: pores, CROSS-POLARS: V-prominent, R-prominent, |
Lith size: 3->5µm; |
Geological Range:
Last occurrence (top): within NP12 zone (50.50-53.70Ma, top in Ypresian stage). Data source: Varol 1989
First occurrence (base): within NP11 zone (53.70-54.17Ma, base in Ypresian stage). Data source: Varol 1989
Plot of occurrence data:
Varol, O. (1989b). Eocene calcareous nannofossils from Sile (northwest Turkey). Revista Española de Micropaleontología. 21: 273-320. gs References:
Toweius oztunalii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 12-10-2024
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1815 Go to Archive.is to create a permanent copy of this page - citation notes |
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