Nannotax3 - ntax_cenozoic - Quaternariella HOL Nannotax3 - ntax_cenozoic - Quaternariella HOL

Quaternariella HOL

Classification: ntax_cenozoic -> Holococcoliths -> tubeless -> tubeless-minute -> Quaternariella HOL
Sister taxa: Balaniger HOL, Calciarcus, Quaternariella HOL

Daughter taxa (time control age-window is: 0-800Ma)
Quaternariella obscura HOL
Cell spherical, ca. 3-5 µm wide; scales sub-circular about 0.5 µm across; cluster of four rhombohedral crystallites (0.1- 0.15 µm) in centre of each scale


Citation: Quaternariella HOL Thomsen 1980
Rank: Genus
Type species: Quaternariella obscura Thomsen 1980

Distinguishing features:
Parent taxon (tubeless-minute): Lightly calcified holococcoliths, <1µm across; typically organic scales with weak calcification
This taxon: Monomorphic. Coccoliths are organic scales with a few rhombohedral crystallites arranged in squares.

Farinacci & Howe catalog pages: Quaternariella *

See also: Quaternariella ;

Search data:
LITHS: holococcolith, quadrate,
CSPH: equant, monomorphic,
Lith size: 0.3->0.5µm; Coccosphere size: 3->5µm;
Data source notes: lith and csph size from illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): Extant. Data source: Total of ranges of the species in this database
First occurrence (base): within No known fossil record modern (0-0Ma, base in "Holocene" stage). Data source: Total of ranges of species in this database

Plot of occurrence data:


Thomsen, H. A. (1980). Quaternariella obscura gen. et sp. nov. (Prymnesiophyceae) from West Greenland. Phycologia. 19(4): 260-265. gs


Quaternariella HOL compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 30-11-2023

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Short stables page link: Go to to create a permanent copy of this page - citation notes

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