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Muricohedbergella astrepta


Classification: pf_mesozoic -> Hedbergellidae -> Muricohedbergella -> Muricohedbergella astrepta
Sister taxa: M. almadenensis, M. angolae, M. astrepta, M. atlantica, M. blakensis, M. crassa, M. delrioensis, M. flandrini, M. hoelzli, M. holmdelensis, M. implicata, M. kyphoma, M. loetterli, M. monmouthensis, M. planispira, M. portsdownensis, M. praelibyca, M. rosebudensis, M. sliteri, M. wondersi, M. sp.,

Taxonomy

Citation: Muricohedbergella astrepta (Petrizzo and Huber, 2006)
Rank: Species
Basionym: Hedbergella astrepta

Type images:

Original description: Wall macroperforate, muricae irregularly scattered on test surface, very abundant on the early outer chambers and gradually decreasing on the last ones; test low trochospiral, biconvex, equatorial periphery subcircular and lobulate, peripheral margin rounded; chambers globular and inflated, 7-8 in final whorl, uniformly and slowly increasing in size, triangular on the umbilical side, rhomboidal on the spiral side; sutures depressed, straight and radial; umbilicus narrow and deep; aperture an interiomarginal, extraumbilical-umbilical, low arch bordered by portici.

Entries in the Catalog of original descriptions: Hedbergella astrepta

Geological Range:
Last occurrence (top): within T. reicheli zone (95.94-96.08Ma, top in Cenomanian stage). Data source: [copied from Chronos database]
First occurrence (base): within P. appenninica zone (100.50-101.92Ma, base in Albian stage). Data source: [copied from Chronos database]

Plot of occurrence data:

Dec 2017 - Plotting of Neptune data has been re-enabled on the Mesozoic pages following revision of the age-models in Neptune. The data is, however, still very sparse for the Early Cretaceous

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Muricohedbergella

    References:

    Petrizzo, M. R. & Huber, B. T. (2006). Biostratigraphy and taxonomy of late Albian planktonic foraminifera from ODP Leg 171B (western North Atlantic Ocean). Journal of Foraminiferal Research. 36: 166-190. gs


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    Muricohedbergella astrepta compiled by the pforams@mikrotax project team viewed: 8-12-2019

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    Short stable page link: http://mikrotax.org/pforams/index.php?id=110360 Go to Archive.is to create a permanent copy of this page - citation notes



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