pforams@mikrotax - Guembelitriidae pforams@mikrotax - Guembelitriidae


Classification: pf_mesozoic -> Guembelitriidae
Sister taxa: Guembelitriidae ⟩⟨ Heterohelicidae ⟩⟨ Planomalinidae, Globigerinelloididae, Schackoinidae ⟩⟨ Conoglobigerinidae, Chilostomellidae, Favusellidae, Praehedbergellidae, Hedbergellidae, Rugoglobigerinidae, Rotaliporidae, Globotruncanidae, hidden
Daughter taxa (time control age-window is: 0-800Ma)Granddaughter taxa
Test subconical, chambers globular and inflated, triserial throughout, sutures distinct, depressed; wall calcareous, optically radial, finely and irregularly perforate, with each pore elevated on a pore mound; aperture an interiomarginal arch at the base of the final chamber, with an imperforate bordering lip.
Guembelitria cenomana
Guembelitria cretacea
Guembelitria sergipensis
Guembelitria sp.


Citation: Guembelitriidae Montanaro Gallitelli 1957
taxonomic rank: Family

Original description: Test triserial; chambers globular; aperture basal, arched, simple. [Montanaro Gallitelli, 1957 p. 136]

Entries in the Catalog of original descriptions: Guembelitriinae

Distinguishing features:
Parent taxon (pf_mesozoic):
This taxon: Early stage trochospiral, triserial, or biserial, later may show serial reduction or proliferation.

Geological Range:
Last occurrence (top): at top of P1b subzone (100% up, 63.9Ma, in Danian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within P. cheniourensis zone (118.02-118.93Ma, base in Aptian stage). Data source: Total of ranges of species in this database

Plot of range and occurrence data:


Loeblich, A. R. & Tappan, H. (1988). Foraminiferal Genera and Their Classification (Volume I-II). Van Nostrand Reinhold Co., New York. 1-1059. gs


Guembelitriidae compiled by the pforams@mikrotax project team viewed: 23-2-2024

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