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.,


Citation: Clavihedbergella subdigitata (Carman, 1929)
Rank: Species
Basionym: Globigerina subdigitata

Type images:

Original description: Globigerina subdigitata Carman 1929: "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;

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 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

Character matrix

test outline:Stellatechamber arrangement:Planispiraledge view:Hourglassaperture:Equatorial
umb chamber shape:Elongatecoiling axis:Very lowperiphery:N/Aaperture border:Thin lip
sp chbr shape:Elongateumbilicus:Narrowperiph margin shape:Moderately roundedaccessory apertures:Relict
umbilical or test sutures:Moderately depressedumb depth:Shallowwall texture:Smoothshell porosity:
spiral sutures:Moderately depresseddiameter mm:0.4width mm:breadth mm:0.11
final-whorl chambers:4.5-5.5


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


Clavihedbergella subdigitata compiled by the pforams@mikrotax project team viewed: 20-1-2018

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