Reticulofenestra circus


Ancestry: Coccolithophores -> Isochrysidales -> Noelaerhabdaceae -> Reticulofenestra -> R. umbilicus group -> Reticulofenestra circus
Sister taxa: R. umbilicus, R. dictyoda, R. hillae, R. hampdenensis, R. hesslandii, R. moorei, R. circus, R. circus var. lata, R. wadeae, R. maceria Shafik 1989, R. oamaruensis,

Short diagnosis: Medium-sized, subcircular Reticulofenestra with a thin tube and a medium-sized central opening with quadrate outline.


Taxonomy:

Citation: Reticulofenestra circus de Kaenel & Villa, 1996
Rank: Species

Farinacci & Howe catalog pages: Reticulofenestra circus *

Short diagnosis: Medium-sized, subcircular Reticulofenestra with a thin tube and a medium-sized central opening with quadrate outline.

Search data:
TagsLITHS: placolith, sub-circular, CA: grill, vacant,
CSPH: spherical, monomorphic, V-UNITS: none, R-UNITS: all, c-str, distal shield, prox shield, tube, DETAILS: ca_conjunct, isogyres kinked, isogyres oblique, rim-unicyclic,
MetricsLith size: 6->10┬Ám;
Sources:
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NP23 zone (29.62-32.02Ma, top in Rupelian stage). Data source: de Kaenel & Villa, 1996
First occurrence (base): within NP22 zone (32.02-32.92Ma, base in Rupelian stage). Data source: de Kaenel & Villa, 1996

Plot of occurrence data:

References:

de Kaenel, E. & Villa, G., (1996). Oligocene-Miocene calcareous nannofossil biostratigraphy and paleoeecology from the Iberian Abyssal Plain. Proceedings of the Ocean Drilling Program. Scientific Results, 149: 79-145.


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Reticulofenestra circus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 20-10-2017

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Comments (1)

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Pat Diver
I believe you meant de Kaenel & Villa 1996 not de Kaenel & Villa 1966
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Jeremy Young (NHM, UK)
true - and corrected now
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