Taxonomy
Original description: Text small, concavo-convex, 4 to 6 chambers on the last whorl. Peripheral outline lobate, petaloid to star-shaped, axial periphery subangular to acute. The pointed extention of the chambers are usually tubulospinate. Wall texture generally recrystallized in granular calcite.
Entries in the Catalog of original descriptions: Hedbergella (Asterohedbergella) asterospinosa
Character matrix
test outline: | Stellate | chamber arrangement: | Trochospiral | edge view: | Concavo-convex | aperture: | |
sp chamber shape: | Elongate | coiling axis: | Low | periphery: | aperture border: | Thin lip | |
umb chbr shape: | Trapezoidal | umbilicus: | Narrow | periph margin shape: | Subangular | accessory apertures: | None |
spiral sutures: | Weakly depressed | umb depth: | Shallow | wall texture: | Encrusted | shell porosity: | |
umbilical or test sutures: | Weakly depressed | final-whorl chambers: | 4-6 | N.B. These characters are used for advanced search. N/A - not applicable |
Geological Range:
Last occurrence (top): within R. cushmani zone (94.03-98.69Ma, top in Cenomanian stage). Data source: [copied from Chronos database]
First occurrence (base): within Cenomanian Stage (93.90-100.50Ma, base in Cenomanian stage). Data source: [copied from Chronos database]
Plot of range and occurrence data:
Hamaoui, M. (1965b). On a new subgenus of Hedbergella (Foraminiferida). Israel Journal of Earth Sciences. 13(3-4): 133-142. gsReferences:
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Asterohedbergella asterospinosa compiled by the pforams@mikrotax project team viewed: 30-4-2025
Short stable page link: https://mikrotax.org/pforams/index.php?id=110018 Go to Archive.is to create a permanent copy of this page - citation notes |
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