Derivanturportantes sigmoides

(Bramlette & Sullivan, 1961) Varol, n. comb. Jan 21, 2022

Set number: 1319

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10µm

Derivanturportantes sigmoides, Late Paleocene, DSDP Leg 25, Site 245A, Mozambique Channel (Davie Ridge), Indian Ocean

Set number: 1307

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10µm

Derivanturportantes sigmoides, Late Paleocene, IODP Leg 171, Site 1051A, Black Nose, Western North Atlantic

in mobile mount

Set number: 1310

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10µm

Derivanturportantes sigmoides, Late Paleocene, Santos Basin, Brazil

Set number: 1308

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10µm

Derivanturportantes sigmoides, Late Paleocene, Santos Basin, Brazil

Set number: 1309

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10µm

Derivanturportantes sigmoides, Late Paleocene, Santos Basin, Brazil

Set number: 1315

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10µm

Derivanturportantes sigmoides, Early Paleocene, Alabama, USA

Final Epithet

Derivanturportantes sigmoides (Bramlette & Sullivan, 1961) Varol, n. comb.

Basionym

Zygodiscus sigmoides Bramlette & Sullivan, 1961

Remarks

The persistent highest occurrence of this species is at 56.5Ma.

References

Bramlette, M. N., Sullivan, F. R., 1961, Coccolithophorids and related nannoplankton of the Early Tertiary in California. Micropaleontology 7(2), 129-188.

Taxonomy

Derivanturportantes

Biostratigraphy

Stratigraphic Range

Danian

Age (Ma)

66.04 - 54.70

Holotype

Zygodiscus sigmoides Bramlette & Sullivan, 1961

Late Paleocene

Lodo section, northwestern Fresno County, central California, USA