Cingulatisporites sp. 2 (Fig. 12A)

OCCURRENCE. — Ashikajima and Kimigahama Fm.

DESCRIPTION

Cingulate trilete microspore. Amb rounded triangular. The laesurae are raised, undulating, and extend to the cingulum. Exine scabrate. Equatorial diameter = 45-50 µm; cingulum thickness = 5-8 µm.

BOTANICAL AFFINITIES

Filicopsida.