Rhabdosphaera poculii


Classification: ntax_cenozoic -> Syracosphaerales -> Rhabdosphaeraceae -> Rhabdosphaera -> Rhabdosphaera poculii
Sister taxa: R. clavigera, R. gracilenta, R. poculii, R. vitrea, R. xiphos, R. sp.

Taxonomy:

Citation: Rhabdosphaera poculii (Bona and Kernerne, 1966) Muller, 1974
Rank: Species
Basionym: Rhabdolithus poculi Bona and Kernerne, 1966

Distinguishing features: Similar to Discosphaera tubifera but with domal rather than open flaring end.

A new SEM illustration of this species from Ines Galovic is included here. It supports the inference that this species is close to Discosphaera tubifera, since the structure of both the stem and the base are very similar to that of Discosphaera [my interpretation - JRY 2020].

Farinacci & Howe catalog pages: R. poculi *


Morphology: Rare species, predominantly known from the para-tethyan region.

Search data:
TagsLITHS: planolith, elliptical, CA: ca_disjunct, process, CROSS-POLARS: R-prominent,
MetricsLith size: 5->8µm;
Data source notes: lith length from OD & illustrated specimens & slightly extended
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Notes: NN4 to 10 (based on Para-Tethyan records).
Last occurrence (top): within NN10 zone (8.29-9.53Ma, top in Tortonian stage). Data source: JRY - from review of Paratethyan literature
First occurrence (base): within NN4 zone (14.91-17.95Ma, base in Burdigalian stage). Data source: JRY - from review of Paratethyan literature

Plot of occurrence data:

References:

Bona, J. & Kernerne, K. (1966). Mikropaleontologiae vizsgalotok a tekeres 1. sz. Foldtani alapfuras Miocen kepzodmenyein. Magyar Allami Foldtani Intezet. Evi Jelentese. 1964: 113-137. gs

Müller, C. (1974c). Nannoplankton aus dem Mittel-Miozän von Walbersdorf (Burgenland). Senckenbergiana Lethaea. 55: 389-405. gs

Young, J. R. (1998). Neogene. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 225-265. gs V O


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Rhabdosphaera poculii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 28-1-2021

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=1197 Go to Archive.is to create a permanent copy of this page - citation notes



Comments (1)

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Ines Galovic (Zagreb, Croatia)

Dear Jeremy, Obertorton for the Paratethys stage definition was stood for upper Badenian in that time. Today it is NN6 zone. In the Paratethys the species (characterise) appears during MMCO and it's very rare during the MMCT in Croatian Basin, after which disappear.

Best wishes :)

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