Bowmania svabenickae

(Burnett, 1997) Varol, 2025a Jul 25, 2025

Set number: 2063

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10µm

Bowmania svabenickae, Middle Campanian, DSDP Leg 25, Site 249, Mozambique Channel (Davie Ridge), Indian Ocean

Set number: 2064

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10µm

Bowmania svabenickae, Middle Campanian, DSDP Leg 25, Site 249, Mozambique Channel (Davie Ridge), Indian Ocean

Set number: 2062

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Bowmania svabenickae, Middle Campanian, Arabian Peninsula (The specific location cannot be disclosed)

Final Epithet

Bowmania svabenickae (Burnett, 1997) Varol, 2025a

Basionym

Quadrum svabenickae Burnett, 1997

Remarks

Cuboid species of Bowmania exhibit a square central depression with apices aligned at 45° to the apices of the blocks. A central cross occupies the central depression and displays parallel extinction with length-fast (-) elongation. The blocks also display parallel extinction, but with length-slow (+) elongation.

References

Burnett, J. A., 1997c. New species and new combinations of Cretaceous nannofossils and a note on the origin of Petrarhabdus (Deflandre) Wise & Wind. Journal of Nannoplankton Research 19(2), 133-146.

Varol, O. 2025a. A practical guide to optical studies of calcareous nannofossils. Grzybowski Foundation Special Publication. 29: 1-222

Taxonomy

Bowmania

Biostratigraphy

Stratigraphic Range

Middle Coniacian - Middle Campanian

Zone(s)

CC13 - CC22

Age (Ma)

88.40 - 76.38

Holotype

Quadrum svabenickae Burnett, 1977

DSDP Leg 25, Site 249, Mozambique Channel (Davie Ridge), Indian Ocean