Nannotax3 - ntax_cenozoic - tubeless-minute Nannotax3 - ntax_cenozoic - tubeless-minute

tubeless-minute


Classification: ntax_cenozoic -> Holococcoliths -> tubeless -> tubeless-minute
Sister taxa: Sphaerocalyptra, Syracosphaera HOL (Anthosphaera type), 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.
Balaniger virgulosa HOL

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

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

Taxonomy:

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

Distinguishing features:
Parent taxon (tubeless): Holococcoliths without a tube, flat or cap-shaped
This taxon: Lightly calcified holococcoliths, <1µm across; typically organic scales with weak calcification

Farinacci & Howe catalog pages:

Search data:
: holococcolith,
Lith 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: Total of ranges of the species in this database
First occurrence (base): within No known fossil record modern (0.00-0.00Ma, base in "Holocene" stage). Data source: Total of ranges of species in this database

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. S1: 1-132. gs


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tubeless-minute compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 5-12-2024

Taxon Search:
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Short stable page link: https://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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