Nannotax Enabling nannofossil research

Description: Like H. carteri but pores large.

Remarks:

Range: NN12 to 19. Last occurrence has been used in some zonatons but is rather diachronous

Variant: H. omanica Sato, Kameo and Takayama, 1991 - bar missing, ? dissolved. Also similar to H. neogranulata.