Syracosphaera repagula


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

Distinguishing features: Rim well-developed, wide lath cyle cycle, longitudinal bar


Taxonomy:

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

Farinacci & Howe catalog pages: Syracosphaera repagula *

Distinguishing features: Rim well-developed, wide lath cyle cycle, longitudinal bar


Morphology remarks: 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.

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:

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Syracosphaera

    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


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    Syracosphaera repagula compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 13-11-2019

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    Short stable page link: http://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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