Classification: ntax_cenozoic -> Holococcoliths -> tubeless -> tubeless-minute
Sister taxa: Sphaerocalyptra, Anthosphaera, fried egg monomorphic, flat dimorphic, flat (coccolithaceae HOLs), flat trapezoidal, tubeless-minute

Daughter taxa (time control age-window is: 0-800Ma)Granddaughter taxa
Balaniger HOL
Monomorphic. Coccoliths are organic scales with a few pyramidal ?crystallites.

Monomorphic. Rhombohedral crystallites forming 3 or 4 radial converging struts attached to a scale with calcareous rim

Quaternariella HOL
Monomorphic. Coccoliths are organic scales with a few rhombohedral crystallites arranged in squares.


Citation: Minute tubeless holococcoliths (sensu Young et al. 2003)
Rank: species group

Distinguishing features: Lightly calcified holococcoliths, <1µm across; typically organic scales with weak calcification

Farinacci & Howe catalog pages: tubeless-minute [no catalog entry yet]

Search data:
TagsLITHS: holococcolith,
MetricsLith size: 0->0µm;
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: present in the plankton
First occurrence (base): within No known fossil record modern (0.00-0.00Ma, base in "Holocene" stage). Data source: [JRY rough estimate]

Plot of occurrence data:


Young, J. R., Geisen, M., Cros, L., Kleijne, A., Probert, I. & Ostergaard, J. B. (2003). A guide to extant coccolithophore taxonomy. Journal of Nannoplankton Research, Special Issue. 1: 1-132. gs V O


tubeless-minute compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 20-4-2021

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

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