overview (8)
Arkhangelskiales (2)
Eiffellithales (3)
Holococcoliths (26)
Nannoliths (10)
Podorhabdales (7)
Watznaueriales (1)
Pontosphaera pulcheroides (Sullivan, 1964) Romein, 1979
Description: Pontosphaera with a plate that has a row of small pores towards its outer edge and a large central hole spanned by an oblique tranverse bar.
Remarks:
Neogene: Pontosphaera
Paleogene: Pontosphaera pulcheroides