pforams@mikrotax - Clavihedbergella subdigitata

Clavihedbergella subdigitata


Classification: pf_mesozoic -> Hedbergellidae -> Clavihedbergella -> Clavihedbergella subdigitata
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 subdigitata (Carman, 1929)
Rank: Species
Basionym: Globigerina subdigitata

Type images:

Original description: "Test trochoid, in early stages with very low spire, becoming nearly planispiral in the adult, perforate. Last few chambers greatly elongated, with blunt ends, with chamber walls parallel not tapering. Axis of these chambers joins test at tangential angle."

Entries in the Catalog of original descriptions: Globigerina subdigitata


Emended description:


Morphology:

Wall type:

Size:

Character matrix
test outline:Stellatechamber arrangement:Planispiraledge view:Hourglassaperture:Equatorial
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:Moderately depressedumb depth:Shallowwall texture:Smoothshell porosity:
umbilical or test sutures:Moderately depressedfinal-whorl chambers:4.5-5.5 N.B. These characters are used for advanced search. N/A - not applicable

Geological Range:
Last occurrence (top): within D. asymetrica zone (84.19-86.71Ma, top in Santonian stage). Data source: [copied from Chronos database]
First occurrence (base): within D. concavata zone (86.71-89.91Ma, base in Turonian stage). Data source: [copied from Chronos database]

Plot of range and occurrence data:

References:

Carman, K. (1929). Some foraminifera from the Niobara and Benton formations of Wyoming. Journal of Paleontology. 3(3): 309-315. 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


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Clavihedbergella subdigitata compiled by the pforams@mikrotax project team viewed: 30-11-2022

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Short stable page link: https://mikrotax.org/pforams/index.php?id=110051 Go to Archive.is to create a permanent copy of this page - citation notes



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