Alisporites sp. cf. A. australis de Jersey, 1962

OCCURRENCE. — Ashikajima Fm.

DESCRIPTION

Bisaccate pollen grain. Central body spherical, scabrate. The sacci are reticulate and a little longer than the central body, probably hanging. Total width = 50 µm. Central body diameter = 25 µm. Saccates (length × width) = 40 × 10 µm.

REMARKS

This grain is morphologically very similar to Alisporites australis de Jersey, 1962 previously reported from the Triassic of Australia (de Jersey 1962).

BOTANICAL AFFINITIES

Gymnosperms, Pteridospermales?