Nannotax3 - ntax_main - Bomolithus cantabriae Nannotax3 - ntax_main - Bomolithus cantabriae

Bomolithus cantabriae


Classification: ntax_main -> Discoasterales -> Heliolithaceae -> Bomolithus -> Bomolithus cantabriae
Sister taxa: B. elegans, B. universus, B. cantabriae, B. dydimolofous ⟩⟨ B. falklandensis, B. sp.


Taxonomy:
Citation: Bomolithus cantabriae (Perch-Nielsen 1971) Bowman & Varol 2021
Taxonomic rank: species
Basionym: Heliolithus cantabriae * Perch-Nielsen 1971

Synonyms:

Distinguishing features:
Parent taxon (Bomolithus): Three superposed cycles - disk and column strongly birefringent, medial cycle weakly birefringent. Column high.
This taxon: 8-15 µm; column low and flat, with central depression

Search data:
Lith size: 6->14µm;
Data source notes: size from illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): in lower part of NP9 zone (20% up, 56.9Ma, in Thanetian stage). Data source: Varol, (1989, fig. 12.4), Bowman & Varol 2021 fig. 7
First occurrence (base): in upper part of NP5 zone (80% up, 59.9Ma, in Selandian stage). Data source: Agnini et al. 2007, fig. 9

Plot of occurrence data:

References:

Agnini, C., Fornaciari, E., Raffi, I., Rio, D., Rohl, U. & Westerhold, T. (2007a). High-resolution nannofossil biochronology of middle Paleocene to early Eocene at ODP Site 1262: Implications for calcareous nannoplankton evolution. Marine Micropaleontology. 64: 215-248. gs

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. gs

Müller, C. (1974). Calcareous nannoplankton, Leg 25 (Western Indian Ocean). Initial Reports of the Deep Sea Drilling Project. 25: 579-633. gs

Okada, H. & Thierstein, H. R. (1979). Calcareous nannoplankton - Leg 43, Deep Sea Drilling Project. Initial Reports of the Deep Sea Drilling Project. 43: 507-573. gs O

Perch-Nielsen, K. (1971d). Neue Coccolithen aus dem Paläozän von Dänemark, der Bucht von Biskaya und dem Eozän der Labrador See. Bulletin of the Geological Society of Denmark. 21: 51-66. gs

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 O

Perch-Nielsen, K. (1985). Cenozoic calcareous nannofossils. In, Bolli, H. M., Saunders, J. B. & Perch-Nielsen, K. (eds) Plankton Stratigraphy. Cambridge University Press, Cambridge (1): 427-555. gs

Pospichal, J. J. & Wise, S. W. (1990). Paleocene to Middle Eocene calcareous nannofossils of ODP sites 689 and 690, Maud Rise, Weddell Sea. Proceedings of the Ocean Drilling Program, Scientific Results. 113: 613-638. gs

Utsunomiya, M., Self-Trail, J. M., Kelly, D. C., Zhang, X., Gardner, K. F. & Zachos, J. C. (2026). Calcareous nannofossil assemblage changes in the Surprise Hill core and their implications for floral response to the Paleocene-Eocene Thermal Maximum across the Salisbury Embayment of Virginia, USA. Marine Micropaleontology. 204(102579): 1-15. gs

Varol, O. (1989c). Palaeocene calcareous nannofossil biostratigraphy. In, Crux, J. A. & van Heck, S. E. (eds) Nannofossils and their applications: Proceedings of the 2nd INA Conference, London 1987. British Micropalaeontological Society Publication Series . 265-310. gs

Wei, W. (1988). Heliolithus bukryi a new Upper Paleocene calcareous nannofossil. INA Newsletter. 10(2): 90-93. gs

Wise, S. W. & Wind, F. H. (1977). Mesozoic and Cenozoic calcareous nannofossils recovered by DSDP Leg 36 drilling on the Falkland Plateau, south-west Atlantic sector of the Southern Ocean. Initial Reports of the Deep Sea Drilling Project. 36(269-491): -. gs O


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Bomolithus cantabriae compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 18-8-2026

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