Corollithion exiguum

Set number: 2967

1
2
3
4

10µm

Corollithion exiguum, Late Turonian, Arabian Peninsula (The specific location cannot be disclosed)

Set number: 2973

1
2

10µm

Corollithion exiguum, Late Santonian, Arabian Peninsula (The specific location cannot be disclosed)

Set number: 2972

1
2

10µm

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

Set number: 2971

1
2

10µm

Corollithion exiguum, Late Santonian, Arabian Peninsula (The specific location cannot be disclosed)

Set number: 2970

1
2

10µm

Corollithion exiguum, Early Campanian, Arabian Peninsula (The specific location cannot be disclosed)

Set number: 2969

1
2

10µm

Corollithion exiguum, Late Campanian, Arabian Peninsula (The specific location cannot be disclosed)

Set number: 2968

1
2

10µm

Corollithion exiguum, Late Campanian, Arabian Peninsula (The specific location cannot be disclosed)

Set number: 2966

1
2

10µm

Corollithion exiguum, Early Coniacian, Arabian Peninsula (The specific location cannot be disclosed)

Set number: 2965

1
2

10µm

Corollithion exiguum, Early Coniacian, Arabian Peninsula (The specific location cannot be disclosed)

Set number: 2964

1
2

10µm

Corollithion exiguum, Middle Santonian, Arabian Peninsula (The specific location cannot be disclosed)

Final Epithet

Corollithion exiguum Stradner, 1961

Basionym

Corollithion exiguum Stradner, 1961

Optical Properties

The outer protolith wall remains in constant extinction because the optic axis (c‑axis) is perpendicular to the microscope stage. In contrast, the inner protolith wall, radial bars, and distal process exhibit greyish‑white interference colours.

Remarks

Hexagonal species of Corollithion are characterised by a double protolith wall and a large central area spanned by six radial bars that extend to the midpoints of the sides, each supporting a stellate distal process. Short spines commonly arise only from the vertices.

References

Stradner, H. 1961. Vorkommen von Nannofossilien im Mesozoikum und Alttertiär. Erdoel-Zeitschrift 77(3): 77-88.