Dentigloborotalia anfracta

Classification: pf_neogene -> Globorotalidae -> Dentigloborotalia -> Dentigloborotalia anfracta
Sister taxa: D. anfracta, D. sp.,


Citation: Dentigloborotalia anfracta (Parker, 1967)
Rank: species
Basionym: Globorotalia anfracta (Parker, 1967)

Catalog entries: Globorotalia anfracta;

Type images:

Short diagnosis: monospecific

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.


Diagnostic characters: Coiling direction (in extant population): mixed

Test morphology: Test small, very low trochospiral, spiral side almost flat, lobulate in equatorial profile; axial profile rounded, the final cham- ber somewhat compressed; chambers inflated four to five in the final whorl, increasing slowly as added; sutures on spiral side and umbilical side radial and depressed; surface smooth, translucent, covered with fine pustules. Aperture a low arch with a broad lip. [Kennett & Srinivasan 1983]

Size: <150┬Ám

Biogeography and Palaeobiology

Geographic distribution: Tropical [Kennett & Srinivasan 1983]

Phylogenetic relations: Gr. (Te.) anfracta is distinguished from Gr. ( Te. ) clemenciae by its thin, almost translucent test, flat spiral side, and rather compressed final chamber in peripheral view. Gr. (Te.) anfracta is the modern representative of the Tenuitella lineage and seems to have developed from Gr. (Te.) clemenciae in the Late Miocene. [Kennett & Srinivasan 1983]

Most likely ancestor: Tenuitella clemenciae - at confidence level 3 (out of 5). Data source: Kennett & Srinivasan 1983, fig 18.

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Extant Data source: present in the plankton (SCOR WG138)
First occurrence (base): within N18 zone (5.20-5.72Ma, base in Messinian stage). Data source: Kennett & Srinivasan 1983

Plot of occurrence data:

Primary source for this page: Kennett & Srinivisan 1983, p.164


Kennett, J.P. & Srinivasan, M.S., (1983). Neogene Planktonic Foraminifera. Hutchinson Ross Publishing Co., Stroudsburg, Pennsylvania, 1-265 pp.

Parker, F.L., (1967). Late Tertiary biostratigraphy (planktonic foraminifera) of tropical Indo-Pacific deep-sea cores. Bulletins of American Paleontology, 52(235): 115203.


Dentigloborotalia anfracta compiled by the pforams@mikrotax project team viewed: 20-1-2018

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