Taxonomy
Entries in the Catalog of original descriptions: Hastigerina aspera digitata, Planomalina mendezensis, Globigerinelloides praevolutus
Emended description:
Character matrix
test outline: | Lobate | chamber arrangement: | Planispiral | edge view: | Hourglass | aperture: | Equatorial |
sp chamber shape: | Globular | coiling axis: | N/A | periphery: | N/A | aperture border: | Thin lip |
umb chbr shape: | Globular | umbilicus: | N/A | periph margin shape: | Broadly rounded | accessory apertures: | Relict |
spiral sutures: | N/A | umb depth: | N/A | wall texture: | Finely pustulose | shell porosity: | Microperforate: <1µm |
umbilical or test sutures: | Moderately depressed | final-whorl chambers: | 4.5-6 | N.B. These characters are used for advanced search. N/A - not applicable |
Most likely ancestor: Planohedbergella aspera - at confidence level 3 (out of 5). Data source: Huber et al. 2022 fig. 2.
Likely descendants: Planohedbergella messinae;
plot with descendants
Geological Range:
Last occurrence (top): within R. calcarata zone (75.06-75.91Ma, top in Campanian stage). Data source: Huber et al 2022
First occurrence (base): within D. concavata zone (85.60-89.75Ma, base in Turonian stage). Data source: Huber et al 2022
Plot of range and occurrence data:
Georgescu, M. D. & Huber, B. T. (2008). Taxonomic re-evaluation and phylogeny of the stellate planktonic foraminiferal genus Hastigerinoides Brönnimann, 1952. Journal of Foraminiferal Research. 38: 52-58. gs Huber, B. T., Petrizzo, M. M. & Falzoni, F. (2022b). Taxonomy and phylogeny of Albian–Maastrichtian planispiral planktonic foraminifera traditionally assigned to Globigerinelloides. Micropaleontology. 68(2): 117-183. gs Kaufmann, F. J. (1865). Die Zeit der kreidebildung: Die Polythalamien des Seewerfaltes, des Gault und Schrattefaltes. In, Heer, O. (ed.) Die Urwelt der Schweiz. F. Schulthess, Zurich 1-198. gsReferences:
Planohedbergella escheri compiled by the pforams@mikrotax project team viewed: 14-12-2024
Short stable page link: https://mikrotax.org/pforams/index.php?id=110132 Go to Archive.is to create a permanent copy of this page - citation notes |
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