Abstract: The materials dealt with the present paper are obtained from the drilling cores of the Shengqiu Formation in Zhoukou Basin.This formation is composed of a series of grey, dark grey, black claystones and light grey, fine to medium grained sandstones, intercalated with black carbonaceous shales and bands of coal, containing abundant sporo-pollen. This sporo-pollen assemblage is characterized by the predominance of gymnospermous pollen (83-61%), relatively abundant pteridophytic spores (9-17%) and few grains of angiospermous pollen. The gymnospcrmous pollens mainly consist of classopollis (60-84%). In addition, it contains some disacoate pollen grains, Cycadopites,Araucariacites, Psophosphaera,etc.. The pteridophytic spores arc characterized by the dominance of Lygodiaceae(5-12%), which includes Cicatricosisporites, Schi-zaeoisporites, Lygodiumsporites, Concavissimisporites, Klukisporites, Ver-rucosisporitcs, Contignisporites, etc.. Jugella of presumed angiospermous are very rare. This sporo-pollen assemblage is similar to those from South China named Classopollis-Schizaeoisporites microflora (Li wenben, 1980), therefore, the Shenqiu Formation is probably Early Cretaceous in age (Barremian).It is suggested that the climate of Zhoukou Basin should be of dry tropical-subtropical type at that time.