Lanternithus arcanus

Taxonomy:

Distinguishing features: Medium sized holococcolith comprising several distinct crystallographic blocks that change appearance on rotation in XPL. At 0° six blocks are visible, four major quadrants, alternating dark and light, delineated by axial sutures, and one small block at each end. At 5° the four quadrants are bright and a small pore is visible in the centre. At 45° the coccolith is bright and crossed by diagonal extinction lines.

Farinacci & Howe catalog pages: L. arcanus *

Geological Range:
Last occurrence (top): within NP15c subzone (42.87-44.12Ma, top in Lutetian stage). Data source: Bown 2005
First occurrence (base): within NP15b subzone (44.12-45.49Ma, base in Lutetian stage). Data source: Bown 2005

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: Lanternithus

Lanternithus arcanus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 11-4-2021 Taxon Search: Advanced Search Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=789 Go to Archive.is to create a permanent copy of this page - citation notes

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