pforams@mikrotax - Rotaliporidae pforams@mikrotax - Rotaliporidae


Classification: pf_mesozoic -> Rotaliporidae
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

Anaticinella multiloculata
Anaticinella planoconvexa
Anaticinella sp.

Test with early whorls in a flat trochospiral coil, later whorls planispiral and biumbilicate, involute to partially evolute, sutures radial, depressed, peripheral outline lobulate, peripheral margin rounded and noncarinate; wall calcareous, moderately coarsely perforate; aperture a low and commonly asymmetrical, interiomarginal, umbilical-equatorial arch, parts of successive apertures may remain as relict supplementary apertures on one side of the test, the other side with accessory apertures opening into the posterior part of the chamber and bordered by a lip that is a continuation from that of the primary aperture.
Biticinella breggiensis
Biticinella subbreggiensis
Biticinella sp.


Pseudothalmanninella klausi
Pseudothalmanninella subticinensis
Pseudothalmanninella tehamaensis
Pseudothalmanninella ticinensis
Pseudothalmanninella sp.

Test trochospiral, biconvex to planoconvex, umbilicate, chambers angular to rhomboid in edge view, sutures elevated, curved, oblique on the spiral side, depressed to flush, straight to curved and radial on the umbilical side, periphery angular with a single keel, peripheral outline entire to lobulate; wall calcareous, finely and densely perforate, optically radial, surface smooth to pustulose, sutures may be thickened to beaded; aperture interiomarginal, extraumbilical-umbilical, bordered by a narrow to wide imperforate lip, accessory apertures along the sutural margin formed by an umbilical flaplike extension from the chamber and bordered by a narrow imperforate lip.
Rotalipora cushmani
Rotalipora montsalvensis
Rotalipora praemontsalvensis
Rotalipora sp.


Test trochospiral, biconvex to planoconvex, umbilicate, chambers globular to ovate, sutures curved on the spiral side, radial on the umbilical side, depressed, periphery rounded and without a keel or poreless margin, peripheral outline lobulate; wall calcareous, optically radial, surface smooth, finely perforate, secondary lamellae emphasizing the surface rugosity and obscuring some pores but enlarging others.
Ticinella madecassiana
Ticinella moulladei
Ticinella praeticinensis
Ticinella primula
Ticinella raynaudi
Ticinella roberti
Ticinella sp.


Citation: Rotaliporidae Sigal 1958
taxonomic rank: Family
Synonyms: Ticinellidae Longoria, 1974, p. 93.

Entries in the Catalog of original descriptions: Rotaliporinae

Distinguishing features:
Parent taxon (pf_mesozoic):
This taxon: Test trochospirally enrolled, primary aperture umbilical-extraumbilical in position and with bordering lip, secondary sutural apertures on umbilical side open into posterior edge of chambers.

Geological Range:
Last occurrence (top): at top of W. archaeocretacea zone (100% up, 93.5Ma, in Turonian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within T. madecassiana zone (111.84-112.40Ma, base in Albian 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


Rotaliporidae compiled by the pforams@mikrotax project team viewed: 25-7-2024

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