Globorotalidae

NB TAXA WHICH ORIGINATE IN THE OLIGOCENE ARE NOT INCLUDED YET
Classification: pf_neogene -> Globorotalidae
Sister taxa: Bolivinidae, Candeinidae, Globigerinidae, Globorotalidae, Guembelitriidae , Hastigerinidae, hidden,

Distinguishing features: non-spinose, visible pores

Daughter taxa: (blue => in age window 0-300Ma) Granddaughter taxa
Radial ridges on umbilical side:

Smooth wall; kidney-shaped chambers:

Trocohspiral test with umbilically restricted aperture and one or more umbilical teeth

Globorotaliids having a high-arched aperture

trochospiral with quadrate to subquadrate profile; aperture in interiomarginal / umbilical-extraumbilical, one or more tooth-like projections extending into the umbilicus.

Smooth wall; compressed chambers:

Trochospiral test, ovate to spherical chambers; final chamber often small/bulla-like; cancellate wall

Cancellate wall; umbilical-extraumbilical aperture:

Compact streptospiral test with smooth cortical coating and large slit-like aperture

Taxonomy

Citation: Globorotalidae Cushman 1927
Rank: family

Catalog entries: Globorotalidae [not in catalog yet]

Type images:

Distinguishing features: non-spinose, visible pores

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.

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Extant Data source: Total of range of species in this database
First occurrence (base): at base of Ypresian Stage (0% up, 56Ma, in Ypresian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Cushman, J.A., (1927). An outline of a re-classification of the Foraminifera. Contributions from the Cushman Laboratory for Foraminiferal Research, 3: 1-105.


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Globorotalidae compiled by the pforams@mikrotax project team viewed: 16-8-2018

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