Parent taxon (Scyphosphaera): Coccospheres with Pontosphaera-like body coccoliths and equatorial coccoliths with rims elevated into vase-like structures (lopadoliths).
This taxon: Elongate barrel-shaped, with distinct wall ornament of large pits or pores.
Farinacci & Howe catalog pages: S. interstincta *
Morphology: Elongate-barrel shaped Scyphosphaera with distinct wall ornament of large pits or pores. The coccolith wall tapers gently both proximally and distally, and the inner cycle thickens at the distal opening.
Differentiation: Distinguised from other Scyphosphaera by the wall ornament and inner cycle thickening at the distal opening. [Bown & Newsam 2017]
Size: Holotype L/W = 7.7μm; H = 14.3μm (Paratype L/W = 8.3μm; H = 14.3μm). Holotype L/W = 6.1μm; H = 11.3μm [Bown & Newsam 2017]
|Tags||LITHS: murolith, elliptical, cylindrical, hollow, CA: plate, pores, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,|
|Metrics||Lith size: 10->15µm; |
Data source notes: lith height from OD
Last occurrence (top): within NP16 zone (40.40-42.87Ma, top in Bartonian stage). Data source: Bown & Newsam 2017
First occurrence (base): within NP15b subzone (44.12-45.49Ma, base in Lutetian stage). Data source: Bown & Newsam 2017
Plot of occurrence data:
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