Nannotax3 - ntax_mesozoic - Crucibiscutum neuquenensis

Crucibiscutum neuquenensis


Classification: ntax_mesozoic -> Podorhabdales -> Biscutaceae -> Crucibiscutum -> Crucibiscutum neuquenensis
Sister taxa: C. hayi, P. quadriperforatus ⟩⟨ C. bastetanum, C. gracile, C. neuquenensis, C. pinnatus, C. ryazanicum, C. salebrosum, C. trilensis, C. sp.

Distinguishing features:
Parent taxon (Crucibiscutum): Elliptical with prominent, birefringent, axial cross.
This taxon: Medium-sized (ca 5-7 µm), broadly elliptical Crucibiscutum; central-area relatively wide, with off-axial (slightly-rotated) cross-bars.


Taxonomy:

Citation: Crucibiscutum neuquenensis Bown & Concheyro 2004
Rank: Species

Farinacci & Howe catalog pages: C. neuquenensis *

Distinguishing features:
Parent taxon (Crucibiscutum): Elliptical with prominent, birefringent, axial cross.
This taxon: Medium-sized (ca 5-7 µm), broadly elliptical Crucibiscutum; central-area relatively wide, with off-axial (slightly-rotated) cross-bars.


Morphology:


Size:


Ecology & Biogeography


Biology & life-cycles

Phylogenetic relations

Search data:
LITHS: placolith, elliptical, CA: cross-axial, ca_disjunct, process, diagonal cross, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
Lith size: 5->7µm;
Data source notes: original description +/- 1 µm
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Early Hauterivian Substage (133.09-133.88Ma, top in Hauterivian stage). Data source: Original description
First occurrence (base): within Early Hauterivian Substage (133.09-133.88Ma, base in Hauterivian stage). Data source: Original description

Plot of occurrence data:

References:

Bown, P. R. & Concheyro, A. (2004). Lower Cretaceous calcareous nannoplankton from the Neuquen Basin, Argentina. In, Villa, G., Lees, J. A. & Bown, P. R. (eds) Calcareous Nannofossil Palaeoecology and Palaeocenographic Reconstructions, Proceedings of the INA9 conference, Parma 2002. Marine Micropaleontology . 52(1-4): 51-84. gs


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Crucibiscutum neuquenensis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 3-12-2022

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10318 Go to Archive.is to create a permanent copy of this page - citation notes



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