Distinguishing features:
Parent taxon (Bomolithus): Three superposed cycles - disk and column strongly birefringent, medial cycle weakly birefringent. Column high.
This taxon: 7-11 µm; column low, with wide central opening
| Lith size: 0->0µm; |
Geological Range:
Last occurrence (top): within NP9 zone (55.86-57.21Ma, top in Ypresian stage). Data source: Bowman & Varol 2021, fig. 7
First occurrence (base): within NP5 zone (59.54-61.51Ma, base in Selandian stage). Data source: Bowman & Varol 2021, fig. 7
Plot of occurrence data:
Bowman, A. R. & Varol, O. (2021). A taxonomic revision of Heliolithaceae—Applications in resolving the problematic calcareous nannofossil biostratigraphy of the Paleocene. In, Montenari, M. (ed.) Stratigraphy & Timescales 6. Academic Press (2): 43-223. gsReferences:

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Bomolithus falklandensis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 11-8-2026
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=20603 Go to Archive.is to create a permanent copy of this page - citation notes |
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