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Praeglobotruncana pseudoalgeriana


Classification: pf_mesozoic -> Hedbergellidae -> Praeglobotruncana -> Praeglobotruncana pseudoalgeriana
Sister taxa: P. algeriana, P. clotensis, P. compressa, P. delrioensis, P. gibba, P. hilalensis, P. inermis, P. kalaati, P. oraviensis, P. pseudoalgeriana, P. shirakinensis, P. stephani, P. sp.,

Taxonomy

Citation: Praeglobotruncana pseudoalgeriana Falzoni et al., 2016
Rank: Species
Basionym: Praeglobotruncana pseudoalgeriana

Type images:

Original description: Low to medium height trochospiral test, macroperforate wall; oval to circular outline, asymmetrical lateral profile with convex spiral side and slightly concave umbilical side; pinched margin; equatorial periphery at the beginning of the last whorl with randomly distributed pustules in primitive specimens; advanced specimens show two alignments of pustules separated by a relatively narrow imperforate peripheral band; four to five chambers in the last whorl. Spiral side with globular chambers in the inner whorl and petaloid to crescentic chambers moderately to rapidly increasing in size in the last whorl; chamber surface pustulose and slightly inflated; sutures curved, raised and marked by alignments of pustules in the inner whorl, weakly raised to depressed in the final whorl. Umbilical side with globular chambers; chamber surface inflated and pustulose; sutures straight and depressed. Primary aperture extraumbilicaleumbilical, umbilical area rather small about 1/4 of the maximum diameter.

Entries in the Catalog of original descriptions: Praeglobotruncana pseudoalgeriana

Geological Range:
Last occurrence (top): within H. helvetica zone (92.56-93.52Ma, top in Turonian stage). Data source:
First occurrence (base): within R. cushmani zone (94.03-95.94Ma, base in Cenomanian stage). Data source:

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

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Praeglobotruncana

    References:

    Falzoni, F., Petrizzo, M. R., Jenkyns, H. C., Gale, A. S. & Tsikos, H. (2016). Planktonic foraminiferal biostratigraphy and assemblage composition across the Cenomanian–Turonian boundary interval at Clot Chevalier (Vocontian Basin, SE France). Cretaceous Research. 59: 69-97. gs


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    Praeglobotruncana pseudoalgeriana compiled by the pforams@mikrotax project team viewed: 30-1-2020

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    Short stable page link: http://mikrotax.org/pforams/index.php?id=110435 Go to Archive.is to create a permanent copy of this page - citation notes



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