Gephyrocapsa omega

Set number: 1430

Gephyrocapsa omega, Extant, Jason Bay, The South China Sea

Fig. 1. Length: 4.63µm; Fig. 2. Length: 4.62µm

Set number: 1175

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10µm

Gephyrocapsa omega, Extant, Rhos-on-Sea, North Wales

Set number: 1174

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10µm

Gephyrocapsa omega, Extant, Rhos-on-Sea, North Wales

Set number: 1494

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10µm

Gephyrocapsa omega, Middle Pleistocene, DSDP Leg 23, Site 229A, Red Sea

Set number: 1511

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10µm

Gephyrocapsa omega, Middle Pleistocene, DSDP Leg 23, Site 229A, Red Sea

Final Epithet

Gephyrocapsa omega Bukry, 1973c

Basionym

Gephyrocapsa omega Bukry, 1973c

Synonyms

Gephyrocapsa oceanica rodela Samtleben, 1980; Holotype: Length: 5.0µm, Bridge angle to major axis: ~77°.

Dimensions Of Holotype

Length: 5.0µm

Bridge angle to major axis: ~83°

Remarks

Medium-sized species of Gephyrocapsa are characterised by a central area wider than the pelaga, with a bridge spanning it and oriented vertically or nearly vertically to the major axis of the placolith.

References

Bukry, D., 1973c. Coccolith stratigraphy, eastern equatorial Pacific, Leg 16, Deep Sea Drilling Project. Initial Reports of the Deep Sea Drilling Project 16, 653-711.

Samtleben, C., 1980. Die Evolution der Coccolithophoriden-Gattung Gephyrocapsa nach Befunden im Atlantik. Paläontologische Zeitschrift 54, 91-127.

Taxonomy

Gephyrocapsa

Biostratigraphy

Stratigraphic Range

Calabrian - Chibanian

Age (Ma)

1.02 - 0.61

Holotype

Gephyrocapsa omega Bukry, 1973

Pleistocene

DSDP Leg 15, Site 147, Cariaco Basin, Atlantic Ocean