Nannotax Enabling nannofossil research

Description: Small species. Flange ends abruptly, no wing or spur. Central-area with inversely oriented pores.

Remarks:

Range: NN6 to 11.

Synonym: H. philippinensis Muller, 1981 - described from better preserved material but otherwise identical to H. orientalis.

Variant: H. pacifica Muller and Bronnimann, 1974 - central-area granular, without well defined pores.