Singanoa scapus

Classification: ntax_mesozoic -> Nannoliths inc sedis -> Microrhabdulaceae -> Singanoa -> Singanoa scapus
Sister taxa: S. scapus, S. sp.

Distinguishing features: Diagnosis as for the genus


Citation: Singanoa scapus Lees, 2007
Rank: Species

Farinacci & Howe catalog pages: S. scapus *

Distinguishing features: Diagnosis as for the genus

Morphology: "Diagnosis as for the genus. May be medium-sized to very small.
Differentiation: The short form of this species bears a slight resemblance to the birefringent blades of Lithraphidites? charactozorro Self-Trail, 1999, as seen in XPL. S. scapus is distinct, however, in not having the tapering ends possessed by that species, and in being much smaller." [Lees 2007]

Size: Holotype dimensions: L = 6.16μm, W = 0.88μm.

Search data:
TagsLITHS: nannolith-other, quadrate, rod-shaped,
MetricsLith size: 4->8µm; Segments: 4->4;
Data source notes: 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 Early Maastrichtian Substage (69.91-72.05Ma, top in Maastrichtian stage). Data source: Lees 2007 (original description)
First occurrence (base): within Late Campanian Substage (72.05-76.38Ma, base in Campanian stage). Data source: Lees 2007 (original description)

Plot of occurrence data:


Lees, J. A. (2007). New and rarely reported calcareous nannofossils from the Late Cretaceous of coastal Tanzania: outcrop samples and Tanzania Drilling Project Sites 5, 9 and 15. Journal of Nannoplankton Research. 29(1): 39-65. gs V O

Perez-Rodriguez, I., Lees, J. A., Larasoaña, J. C., Arz, J. A. & Arenillas, I. (2012). Planktonic foraminiferal and calcareous nannofossil biostratigraphy and magnetostratigraphy of the uppermost Campanian and Maastrichtian at Zumaia, northern Spain. Cretaceous Research. 37: 100-126. gs


Singanoa scapus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 17-6-2021

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