CATALOG OF ORIGINAL DESCRIPTIONS: Archaeoglobigerina Pessagno 1967

This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.


Higher levels: pf_cat -> A -> Archaeoglobigerina
Other pages this level: Abathomphalus, Acarinina, Alanlordella, Alicantina, Alloglobigerinoides, Anaticinella, Anomalina, Archaeoglobigerina, Archaeoglobitruncana, Archaeoguembelitria, Archaeoguembelitriidae, Aristerospira, Ascoliella, Astrorotalia, Asymetria,

Daughter taxa: (blue => in age window 0-800Ma)
= Archaeoglobigerina australis
= Archaeoglobigerina blowi
= Archaeoglobigerina bosquensis
= Archaeoglobigerina mateola

Archaeoglobigerina

Citation: Archaeoglobigerina Pessagno 1967
Rank: Genus
Type species: Archaeoglobigerina blowi Pessagno, 1967

Current identification/main database link: Archaeoglobigerina Pessagno 1967

See also: Rugoglobigerina (Archaeoglobigerina) - also used a sub-genus;


Original Description
Test trochospiral. biconvex to slightly spiroconvex, umbilicate; periphery rounded, but not truncate; with or without imperforate peripheral band or weakly developed double keel. Chambers spherical to ovate, inflated. Suture depressed on both spiral and umbilical sides. straight to curved. Wall perfectly smooth to somewhat rugose; rugosities not aligned in meridionial pattern. Primary aperture umbilical, interiomarginal, covered by tegilla with intralaminal and infralaminal accessory apertures in perfectly preserved specimens. Outer wall radial hyaline perforate except for keels which are both radial hyaline imperforate and partly ultragranular hyaline, imperforate and the rugosities which are ultragranular hyaline, imperforate. Septal walls and tegilla microgranular hyaline. finely perforate.

Extra details from original publication
Remarks.- Archaeoglobigerina Pessagno, n. genus differs from Rugoglobigerina Bronnimann by lacking rugosites or costellae arranged in a distinctive meridional pattern (see remarks on Rugotruncana).
Archaeoglobigerina differs from Globotruncana s.s. (Cushman) (1) by lacking a truncate or angled periphery; (2) by having spherical to ovoidal chambers; (3) by lacking strongly developed keels; and (1) by having sutures which are predominantly depressed rather than raised and often beaded. Keels when present with both Archaeoglobigerina and Rugoglobigerina are weakly developed and do not give the periphery a marked truncate or angled aspect.
Most specimens of the type pecies A. blowi Pessagno, n. sp. lack keels aIthough they frequently show imperforate peripheral bands.

Range - M. renzi assembalge zone (upper Part) to Globotruncana fornicata-stuartiformis assemblage zone, Rugotruncana subcircumnodifer subzone insofar as known.

References:

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


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Archaeoglobigerina compiled by the pforams@mikrotax project team viewed: 15-11-2019

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