In this sporopollen group, arbor pollen grains are dominant, amounting to 94.5% of the total, shrub and herbage pollen grains amount to 3?2%, and pteridophyta spores to 2?3%.

• 乔木和木本花粉总数占94.；5%25；灌木和草本植物花粉总数占3 2%25；蕨类植物孢子总数占2 3%25。