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.
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:
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
(NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Syracosphaera
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. gsVO
Syracosphaera repagula compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 6-12-2022