Nannotax Enabling nannofossil research

Description: Opening wide and with well developed collar.

Remarks: LO has been used as a biostratigraphic marker in the Pleistocene (more detail wlecome!)

Range: NN6? to 19.

Variants:

• S. amphora Deflandre, 1942;
• S. campanula Deflandre, 1942;
• S. darraghi Rade, 1975;
• S. halldalii Deflandre in Deflandre and Fert, 1954.