Classification: pf_cenozoic -> spinose
Sister taxa: microperforate, muricate non-spinose, smooth non-spinose, spinose, hidden,
Daughter taxa (blue => in age window 0-300Ma) Granddaughter taxa
Test lobulate, trochospiral or planispiral, usually with 372-6 globular chambers in final whorl; wall spinose, cancellate, or noncancellate; aperture interiomarginal, umbilical, a low to high arch, with or without a lip, may have supplementary apertures.


Citation: spinose
Rank: informal group

Catalog entries:

Type images:

NB The short diagnoses are used in the tables of daughter-taxa to act as quick summaries of the differences between e.g. species of one genus. They have initially been copied from the diagnostic characters/distinguishing features sections of the Eocene and Paleocene Atlases, they will be edited as the site is developed.


Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): within Chattian Stage (23.03-28.09Ma, top in Chattian stage). Data source: Total of range of species in this database
First occurrence (base): within Danian Stage (61.61-66.04Ma, base in Danian stage). Data source: Total of range of species in this database

Plot of occurrence data:



spinose compiled by the pforams@mikrotax project team viewed: 22-10-2017

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