pforams@mikrotax - Clavihedbergella simplex pforams@mikrotax - Clavihedbergella simplex

Clavihedbergella simplex


Classification: pf_mesozoic -> Hedbergellidae -> Clavihedbergella -> Clavihedbergella simplex
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 simplex (Morrow, 1934)
Taxonomic rank: species
Basionym: Hastigerinella simplex

Type images:

Original description: Test moderately trochoid; chambers in the early portion globular, the penultimate chamber becoming slightly elongate and the final chamber strongly elongate and evenly rounded at the end; chambers about 4 in the final whorl; sutures distinct, moderately depressed; wall finely spinose; aperture indistinct.

Entries in the Catalog of original descriptions: Hastigerinella simplex

Character matrix
test outline:Lobatechamber arrangement:Trochospiraledge view:Hourglassaperture:Umbilical-extraumbilical
sp chamber shape:Elongatecoiling axis:Very lowperiphery:N/Aaperture border:Thin lip
umb chbr shape:Elongateumbilicus:Narrowperiph margin shape:Moderately roundedaccessory apertures:Relict
spiral sutures:Strongly depressedumb depth:Shallowwall texture:Finely pustuloseshell porosity:-
umbilical or test sutures:Strongly depressedfinal-whorl chambers:4-4.5 N.B. These characters are used for advanced search. N/A - not applicable

Geological Range:
Last occurrence (top): within D. concavata zone (85.60-89.75Ma, top in Santonian stage). Data source: [copied from Chronos database]
First occurrence (base): within M. renilaevis zone (112.96-113.20Ma, base in Albian stage). Data source:

Plot of range and occurrence data:

References:

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

Morrow, A. L. (1934). Foraminifera and ostracoda from the Upper Cretaceous of Kansas. Journal of Paleontology. 8: 186-205. gs

Pessagno, E. A. (1967). Upper Cretaceous planktonic foraminifera from the western Gulf Coastal Plain. Palaeontographica Americana. 5: 245-445. gs O

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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Clavihedbergella simplex compiled by the pforams@mikrotax project team viewed: 7-10-2026

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Short stable page link: https://mikrotax.org/pforams/index.php?id=110047 Go to Archive.is to create a permanent copy of this page - citation notes



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