Nannotax3 - ntax_mesozoic - Syracosphaera repagula

Syracosphaera repagula


Classification: ntax_mesozoic -> Syracosphaerales -> Syracosphaeraceae -> Syracosphaera -> Syracosphaera repagula
Sister taxa: S. antiqua, S. repagula, S. sp.

Distinguishing features:
Parent taxon (Syracosphaera):
This taxon: Rim well-developed, wide lath cyle cycle, longitudinal bar


Taxonomy:

Citation: Syracosphaera repagula Bown, Lees & Young 2017
Rank: Species

Farinacci & Howe catalog pages: S. repagula *

Distinguishing features:
Parent taxon (Syracosphaera):
This taxon: Rim well-developed, wide lath cyle cycle, longitudinal bar


Morphology: Very small, elongated, elliptical coccoliths with narrow rims, comprising a broader outer cycle and thin inner cycle (possibly an extended V-unit), and wide, elongated central-areas spanned by numerous short, regularly-spaced, radial laths that meet at a central longitudinal bar.

Size: Length = 1.7 μm, width = 1.3 μm.

Search data:
TagsLITHS: murolith, planolith, SHAPE: elliptical, CA: ca_disjunct, grill,
MetricsLith size: 2->3µm;
Data source notes: original description & illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Turonian Stage (89.77-93.90Ma, top in Turonian stage). Data source: Bown et al. 2017
First occurrence (base): within Turonian Stage (89.77-93.90Ma, base in Turonian stage). Data source: Bown et al. 2017

Plot of occurrence data:

References:

Bown, P. R., Lees, J. A. & Young, J. R. (2017). On the Cretaceous origin of the Order Syracosphaerales and the genus Syracosphaera. Journal of Micropalaeontology. 36(2): 153-165. gs V O


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Syracosphaera repagula compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 9-12-2021

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=11187 Go to Archive.is to create a permanent copy of this page - citation notes



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