Erlendmartinia svastika
Set number: 504
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10µm
Set number: 503
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Set number: 1639
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10µm
Erlendmartinia svastika Varol, 2025a
Nannoturba joceliniorum Steurbaut & Nolf, 2021; This species is considered invalid according to ICN Art. 41, as it was published in combination with the invalid genus Nannoturba.
An intricate, elaborate geometric structure composed of interlocking elongated segments arranged in layers to form cuboid or swastika-like patterns.
The name is derived from the Greek word svastika (or swastika), referring to the swastika-like shape of its long segments.
Maximum Diameter = 13.25 μm; Diameter of the central structure = 5.72 μm (both measured in XPL).
Optical Properties: The segments arranged in a swastika-like pattern exhibit parallel (straight) extinction.
Steurbaut, E. & Nolf, D. 2021. The Mont-des-Récollets section (N France): a key site for the Ypresian-Lutetian transition at mid-latitudes – reassessment of the boundary criterion for the base-Lutetian GSSP. Geodiversitas. 43(11): 311-363.
Varol, O. 2025a. A practical guide to optical studies of calcareous nannofossils. Grzybowski Foundation Special Publication. 29: 1-222
Holotype
Erlendmartinia svastika
Varol, 2025
Middle Eocene
DSDP Leg 39, Sites 356, Sào Paulo Plateau, South Atlantic Ocean