Nannotax3 - ntax_cenozoic - SY molischii gp

SY molischii gp

Classification: ntax_cenozoic -> Syracosphaerales -> Syracosphaeraceae -> Syracosphaera -> SY molischii gp
Sister taxa: SY pulchra gp, SY molischii gp, SY nodosa gp, SY mediterranea group, Syraco - fossil, S. sp.

Daughter taxa (time control age-window is: 0-800Ma)		Granddaughter taxa
	borealis type XCs elliptical discs, with a narrow rim, central part without conical depression. CFCs not differentiated.	S. borealis S. strigilis S. exigua S. pemmadiscus S. andruleitii
	halldalii type Monothecate - no XCs. BCs with horizontal flanges and vertical tubes.	S. halldalii S. protrudens
	molischii type XCs “undulating” planoliths, confined to imbricate circlet around flagellar pole. CFCs with spines showing calyx with 4-fold symmetry, AACs usually present.	S. molischii S. hastata S. marginiporata S. ossa S. epigrosa
	rotula type XCs wheel-like, with radial laths well-separated, spoke-like. BCs and XCs both show distinct chirality. CFCs not differentiated.	S. ampliora S. rotula

Taxonomy:

Citation: SY molischii gp Young et al., 2003

Rank: species group

Distinguishing features:
Parent taxon (Syracosphaera): Coccospheres usually dithecate. Exothecal coccoliths (XCs) highly variable. Endothecal coccoliths are muroliths with 1, 2 or 3 flanges, the forms with 2 flanges are often placolith-like.
This taxon: BCs placolith-like (i.e. with proximal and distal flanges), often with ridges and irregular central area calcification, no spines. XCs variable.

Farinacci & Howe catalog pages: SY molischii gp [no catalog entry yet]

Search data:

Tags	LITHS:
Metrics	Lith size: 1->3.5µm; Coccosphere size: 3->13µm;

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 base of Gelasian Stage (0% up, 2.6Ma, in Piacenzian stage). Data source: Total of range of species in this database

Plot of occurrence data:

Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
Triangles indicate an event for which a precise placement has been suggested
Neptune data: this is a higher taxon page so Neptune data is not plotted. For the customisable plot option go to a genus page Parent: Syracosphaera

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

SY molischii gp compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 19-1-2022

Taxon Search:

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1331 Go to Archive.is to create a permanent copy of this page - citation notes

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