| Daughter taxa (blue => in age window 0-300Ma) | ||||
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Taxonomy
Original description: Pseudoschackoina Verga & Premoli Silva 2005: Test small to medium, pseudoplanispiral, slightly dysaxial, evolute and laterally compressed; 2- 2.5 whorls; chambers in the outer whorl increasing rather fast in size as added; first chambers spherical to subspherical, the last two or three radially elongate, forward-directed and pointed, bearing tubulospines (frequently broken); peripheral outline substellate to stellate; sutures straight to slightly curved, radial and depressed; umbilical area medium wide and shallow; aperture an asymmetrical arch straddling the periphery, bordered by a thin lip; relict apertures at time observed. Wall smooth, finely perforate.
Entries in the Catalog of original descriptions: Pseudoschackoina;
Geological Range:
Last occurrence (top): within (-Ma, top in "Holocene" stage). Data source:
First occurrence (base): within (-Ma, base in stage). Data source:
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.
Verga, D. & Premoli Silva, I., (2005). Early Cretaceous planktonic Foraminifera from the Tethys; the upper Aptian, planispiral morphotypes with elongate chambers. Cretaceous Research, 26(2): 239-259.References:
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Pseudoschackoina compiled by the pforams@mikrotax project team viewed: 26-9-2017
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