overview (8)
Arkhangelskiales (2)
Eiffellithales (3)
Holococcoliths (26)
Nannoliths (10)
Podorhabdales (7)
Watznaueriales (1)
Description: Small to medium sized spinose holococcolith comprising a rim and central process; the spine is short and broad (the coccoliths are typically wider than high), has a notch just above the height of the rim, and a rather broad axial canal.
Remarks:
Range: NP10 to NP15b.
Neogene: Zygrhablithus; Zygrhablithus bijugatus
Paleogene: Zygrhablithus bijugatus nolfi