Archaeoglobigerina blowi

Classification: pf_mesozoic -> Rugoglobigerinidae -> Archaeoglobigerina -> Archaeoglobigerina blowi
Sister taxa: A. australis, A. blowi, A. bosquensis, A. cretacea, A. mateola, A. sp.,


Citation: Archaeoglobigerina blowi Pessagno 1967
Rank: Species
Basionym: Archaeoglobigerina blowi
Synonyms: Globotruncana pura

Type images:

Original description: Archaeoglobigerina blowi Pessagno 1967: Test trochoid, periphery lobulate; four to five globular chambers in final whorl, chambers increasing rapidly in size; tegillum not observed; wall texture smooth to rugose, periphery may have weakly developed double keel on first or second chamber of final whorl.

Entries in the Catalog of original descriptions: Archaeoglobigerina blowi;
Globotruncana pura;

Geological Range:
Last occurrence (top): within A. mayaroensis zone (67.30-69.18Ma, top in Maastrichtian stage). Data source: [copied from Chronos database]
First occurrence (base): within A. mayaroensis zone (67.30-69.18Ma, base in Maastrichtian stage). Data source: [copied from Chronos database]

Plot of occurrence data:

NB Plotting of Neptune data has been disabled on the Mesozoic pages because the dataset is both small and badly affected by a few sites with erroneous age models (our obs Huber, Petrizzo, Young, Nov 2016). The data can still be viewed via the range plottertool - tools menu.

Character matrix

test outline:Quadratechamber arrangement:Trochospiraledge view:aperture:Umb.-extraumbilical
umb chamber shape:Inflatedcoiling axis:Low-moderateperiphery:Imperforate bandaperture border:Thick porticus
sp chbr shape:Inflatedumbilicus:Narrowperiph margin shape:Moderately roundedaccessory apertures:None
umbilical or test sutures:Moderately depressedumb depth:Shallowwall texture:Moderately muricateshell porosity:
spiral sutures:Moderately depresseddiameter mm:0.39width mm:breadth mm:0.21
final-whorl chambers:4.5-5.5


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


Archaeoglobigerina blowi compiled by the pforams@mikrotax project team viewed: 19-11-2017

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