overview (8)
Arkhangelskiales (2)
Eiffellithales (3)
Holococcoliths (26)
Nannoliths (10)
Podorhabdales (7)
Watznaueriales (1)
Pontosphaera fimbriata (Bramlette & Sullivan, 1961) Romein, 1979
Description: Large Pontosphaera with a high flaring rim and a plate that has two large holes that define a transverse bar.
Remarks: Like Pontosphaera formosa but with a plate with two holes.
Neogene: Pontosphaera
Paleogene: Pontosphaera fimbriata