STUDY ON AGE OF A SPORO-POLLEN ASSEMBLAGE WITH NORMAPOLLES AND PRATEACEOUS

Informations provided in this paper were from the anhydrite-containing mud-stone in the upper Menli formation of the Sanmenxia basin. The assemblage studied here has a variety of Normapolles, such as Nu-dopollis, Basopollis, Complexiopollis, Plicapollis, Sporopollis, Vacuo-pollis, etc., containing abundant pollen of proteaceae of over ten kinds with a concentration of 13%. The flourishing and declining of proteaceae plants on the Northern Hemisphere were not consistent during geological history. They began to flourish in Maestrichtian-Danian in Siberia of Soviet Union and the pacific coastal area of North America and gradually extincted out in Paleocenc. During Paleocene, they were thriving in the long and narrow zone trending E-W from central China westward to central kazakhstan of Soviet Union. Four new species and genuses of Diervillopol-lenites magniatrium, Lonicerapollis arcuatus, Proteacidites pustulatus and Dipsacuspollenites sanmenxiaensis are given in this paper.