Distinguishing features:
Parent taxon (Bomolithus): Three superposed cycles - disk and column strongly birefringent, medial cycle weakly birefringent. Column high.
This taxon: Specimens which cannot be assigned to any established species
| Lith size: 0->0µm; |
Geological Range:
Last occurrence (top): within NP10 zone (54.17-55.86Ma, top in Ypresian stage). Data source: same as genus
First occurrence (base): within NP5 zone (59.54-61.51Ma, base in Selandian stage). Data source: same as genus
Plot of occurrence data:
Bown, P. R. (2010). Calcareous nannofossils from the Paleocene/Eocene Thermal Maximum interval of southern Tanzania (TDP Site 14). Journal of Nannoplankton Research. 31(1): 11-38. gs O Perch-Nielsen, K. (1977). Albian to Pleistocene calcareous nannofossils from the Western South Atlantic, DSDP Leg 39. Initial Reports of the Deep Sea Drilling Project. 39: 699-823. gs OReferences:

![]() |
Bomolithus sp. 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=142 Go to Archive.is to create a permanent copy of this page - citation notes |
This policy contains information about your privacy. By posting, you are declaring that you understand this policy:
This policy is subject to change at any time and without notice.
These terms and conditions contain rules about posting comments. By submitting a comment, you are declaring that you agree with these rules:
Failure to comply with these rules may result in being banned from submitting further comments.
These terms and conditions are subject to change at any time and without notice.
Comments