halldalii type


Classification: ntax_cenozoic -> Syracosphaerales -> Syracosphaeraceae -> Syracosphaera -> SY molischii gp -> halldalii type
Sister taxa: borealis type, halldalii type, molischii type, rotula type

Daughter taxa (time control age-window is: 0-800Ma)
Syracosphaera halldalii
BC flange smooth protrusions short or absent
Syracosphaera protrudens
BC flange ridged, with long protrusions into central area

Taxonomy:

Citation: halldalii type Young et al., 2003
Rank: species sub-group

Distinguishing features: Monothecate - no XCs. BCs with horizontal flanges and vertical tubes.

Farinacci & Howe catalog pages:

Search data:
TagsLITHS:
MetricsLith size: 2->3.5µm; Coccosphere size: 7->12µm;
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 range of species in this database
First occurrence (base): at top of No known fossil record modern (100% up, 0Ma, in "Holocene" stage). Data source: Total of range 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, Special Issue. 1: 1-132. gs V O


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halldalii type compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 17-5-2021

Taxon Search:
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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=640 Go to Archive.is to create a permanent copy of this page - citation notes



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