pforams@mikrotax - Pseudoplanomalina pforams@mikrotax - Pseudoplanomalina

Pseudoplanomalina


Classification: pf_mesozoic -> Planomalinidae -> Pseudoplanomalina
Sister taxa: Planomalina, Pseudoplanomalina
Daughter taxa (time control age-window is: 0-800Ma)
Pseudoplanomalina cheniourensis

Pseudoplanomalina sp.
Specimens which cannot be assigned to established species

Taxonomy

Citation: Pseudoplanomalina Moullade et al. 2002
taxonomic rank: Genus

Original description: Test planispiral, bi-evolute, microperforate, periphery of chambers not rounded as in Globigerinelloides but subangular, with a distinct break in the peripheral round, better marked on the first chambers of the last whorl by a concentration of perforation cones giving it a peripheral pseudo-keel.

Entries in the Catalog of original descriptions: Pseudoplanomalina

Geological Range:
Last occurrence (top): at top of H. planispira zone (100% up, 111.8Ma, in Albian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within L. cabri zone (119.05-120.55Ma, base in Aptian stage). Data source: Total of ranges of species in this database

Plot of range and occurrence data:

References:

Moullade, M., Bellier, J. -P. & Tronchetti, G. (2002). Hierarchy of criteria, evolutionary processes and taxonomic simplification in the classification of Lower Cretaceous planktonic foraminifera. Cretaceous Research. 23(1): 111-148. gs


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Pseudoplanomalina compiled by the pforams@mikrotax project team viewed: 26-2-2024

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Short stable page link: https://mikrotax.org/pforams/index.php?id=110462 Go to Archive.is to create a permanent copy of this page - citation notes



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Comments (2)

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Le Coze

original description Moullade, M.; Bellier, J.-P.; Tronchetti, G. (2002). Hierarchy of criteria, evolutionary processes and taxonomic simplification in the classification of Lower Cretaceous planktonic foraminifera. Cretaceous Research. 23(1), 111-148., available online at https://doi.org/10.1006/cres.2002.0304

page(s): pp. 133-134

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Jeremy Young(UK)

thanks, i've added that