Early cretaceous sporopollen assemblage from the Hanxia of Yumen in Gansu, NW China

The present paper deals with sporopollen assemblage of the Early Cretaceous Xiagou Fm. and Zhonggou Fm. from the Hanxia Goukou section of Yumen in Gansu, NW China. This assemblage contains 37 genera and 53 species of spores and pollen and 2 species of 2 genera of fossil algae. According to the abundance of the important genera, the present sporopollen flora was named the Cicatricosisporites-Schizaeoisporites-Classopollis-Jiaohepollis Assemblage.