Bicolumnus ovatus
Wei & Wise, 1990
Oct 08, 2026
Set number: 641
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10µm
Final Epithet
Bicolumnus ovatus Wei & Wise, 1990
Basionym
Bicolumnus ovatus Wei & Wise, 1990
Holotype
The given size of the holotype is 6.5 µm.
Remarks
In this study, specimens smaller than 8.0 µm are assigned to Bicolumnus ovatus, whereas those exceeding 8.0 µm are assigned to Bicolumnus scrippsae.
References
Bukry, D. & Percival, S. F. 1971. New Tertiary calcareous nannofossils. Tulane Studies in Geology and Paleontology 8: 123-146.
Wei, W. & Wise, S. W. 1990. Middle Eocene to Pleistocene calcareous nannofossils recovered by Ocean Drilling Program leg 113 in the Weddell Sea. Proceedings of the Ocean Drilling Program, Scientific Results 113: 639-666.