【Introduction】

   In accordance with the concept of organ genera and species, 38 genera and 89 species of dinoflagellate cysts and acritarchs, 134 genera and 354 species of spores and pollen grains including 6 new genera and 74 new species and 22 new combinations are established.

【Main Contents】

1. Introduction
2. Brief account of stratigraphy
3. Characteristics and geological ages of sporo-pllen assemblages
4. Floras and their general aspects of physical geography
5. Description of genera and species
(1) Algae
(2) Bryophyta and Pteridophyta
(3) Gymnospermae
(4) Angiospermae
6. Refereces
7. Summary
8. Explanation of plates