Corollithion completum

Perch-Nielsen, 1973 Jan 29, 2026

Set number: 2960

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10µm

Corollithion completum, Late Maastrichtian, The specific location cannot be disclosed.

Set number: 2961

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10µm

Corollithion completum, Late Maastrichtian, The specific location cannot be disclosed.

Set number: 2962

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10µm

Corollithion completum, Late Maastrichtian, The specific location cannot be disclosed.

Set number: 2963

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10µm

Corollithion completum, Late Campanian, DSDP Leg 25, Site 249, Mozambique Channel (Davie Ridge), Indian Ocean

Final Epithet

Corollithion completum Perch-Nielsen, 1973

Basionym

Corollithion completum Perch-Nielsen, 1973

Optical Properties

The narrow outer wall remains in constant extinction, whereas the wider inner wall displays white interference colours, and the central core segments exhibit greyish-white interference colours in plan view under crossed polars.

Remarks

A hexagonal species of Corollithion with double walls, enclosing a central area composed of approximately eight or more segments imbricated clockwise and meeting at the centre.

Taxonomy

Corollithion

Biostratigraphy

Stratigraphic Range

Late Campanian - Late Maastrichtian

Age (Ma)

76.38? - 66.04?

Holotype

Corollithion completum Perch-Nielsen, 1973

Maastrichtian

Majunga Basin, Madagascar