Lotharingius okadae

(Fernando, 2014) Varol, n. comb. May 16, 2026

Set number: 3227

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10µm

Lotharingius okadae, Late Albian, Folkestone, South East England

Final Epithet

Lotharingius okadae (Fernando, 2014) Varol, n. comb.

Basionym

Watznaueria okadai Fernando, 2014

Description

Species of Lotharingius are characterised by single-tiered distal and proximal shields, narrow tube cycles, and a central area spanned by an axial cross whose orientation is rotated relative to the long axis of the coccolith.

Optical Properties

Under cross-polarised light in plan view, the shields and tube cycles display first-order white interference colours and are characterised by inclined extinction lines and length-fast (–) elongation. Extinction angles of approximately 71° are observed on the distal side in both structures. The axial cross, which is rotated relative to the long axis of the coccolith, exhibits first-order greyish-white interference colours.

References

Fernando, A. G. S. 2014. Taxonomic note: Watznaueria okadai, a new species of calcareous nannofossil from the Vocontian Basin, southeastern France. Journal of Nannoplankton Research. 33(1): 47-48.