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Clavihedbergella moremani


Classification: pf_mesozoic -> Hedbergellidae -> Clavihedbergella -> Clavihedbergella moremani
Sister taxa: C. amabilis, C. eocretacea, C. leckiei, C. moremani, C. moulladei, C. pauliani, C. simplex, C. simplicissima, C. subcretacea, C. subdigitata, C. sp.,

Taxonomy

Citation: Clavihedbergella moremani (Cushman, 1931)
Rank: Species
Basionym: Hastigerinella moremani

Type images:

Original description: Test somewhat trochoid, but the spire very much depressed so that the chambers are for the most part in a single plane in the adult whorl; chambers in the early portion globular, later becoming more elongate, clavate, and slightly expanded toward the tip, usually finely spinose throughout, slightly more so toward the tip of the elongate chambers; aperture mostly vestral , with a slightly overhanging lip. Diameter 0.18 mm-0.25 mm; thickness 0.05-0.08 mm.

Entries in the Catalog of original descriptions: Hastigerinella moremani

Geological Range:
Last occurrence (top): within D. concavata zone (86.71-89.91Ma, top in Coniacian stage). Data source: [copied from Chronos database]
First occurrence (base): within M. schneegansi zone (89.91-92.56Ma, base in Turonian 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

  • Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
  • Note to users in China - the diagram may not plot unless you use a VPN since I use google services on the website. If this is a problem please contact me 谢谢.
  • Taxon plotted: Clavihedbergella moremani, synonyms included - Clavihedbergella moremani;
  • space-time plot :: Samples map :: Parent: Clavihedbergella

    Character matrix

    test outline:Stellatechamber arrangement:Trochospiraledge view:Equally biconvexaperture:Extraumbilical
    sp chamber shape:Elongatecoiling axis:Lowperiphery:N/Aaperture border:Thin lip
    umb chbr shape:Elongateumbilicus:Narrowperiph margin shape:Broadly roundedaccessory apertures:Relict
    spiral sutures:Moderately depressedumb depth:Shallowwall texture:Smoothshell porosity:
    umbilical or test sutures:Moderately depressedfinal-whorl chambers:5.5-6.0 N.B. These characters are used for advanced search. N/A - not applicable

    References:

    Cushman, J. A. (1931a). Hastigerinella and other interesting foraminifera from the Upper Cretaceous of Texas. Contributions from the Cushman Laboratory for Foraminiferal Research. 7(4): +86+-. gs

    Eicher, D. L. & Worstell, P. (1970). Lunatriella, a Cretaceous heterohelicid foraminifer from the western interior of the United States. Micropaleontology. 16(1): 117-121. gs

    Leckie, M. (1984). Mid-Cretaceous planktonic foraminiferal biostratigraphy off Central Morocco, Deep Sea Drilling Project Leg 79, Sites 545 and 547. Initial Reports of the Deep Sea Drilling Project. 79: 579-620. gs


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    Clavihedbergella moremani compiled by the pforams@mikrotax project team viewed: 24-10-2019

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    Short stable page link: http://mikrotax.org/pforams/index.php?id=110044 Go to Archive.is to create a permanent copy of this page - citation notes



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