tubeless-minute


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

Daughter taxa: (blue => in age window 0-800Ma) Granddaughter taxa
Balaniger HOL
Monomorphic. Coccoliths are organic scales with a few pyramidal ?crystallites.

Calciarcus
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.

Taxonomy:

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

Distinguishing features: Lightly calcified holococcolihs, <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 stage). Data source: [JRY rough estimate]

Plot of occurrence data:

References:

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


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tubeless-minute compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 24-10-2020

Taxon Search:
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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=1445 Go to Archive.is to create a permanent copy of this page - citation notes



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