本文根据在海南岛福山福一井,井深2,903.58—3,024.39米(即流沙港组)中找到丰富的孢子花粉及一定数量的藻类进行研究。讨论了该段地层的地质时代属晚始新世—早渐新世,并对其植物群及古气候、古环境进行初步探讨。初步研究鉴定的孢粉有50科,130属,200多个孢粉类型,其中2个新种。藻类约有9属,十几个类型。 In this paper, based on the abundance of spore pollen and a certain amount of algae in Fuyou Well, Fushan, Hainan Province, well 2,903.58-3,024.39 meters (ie, the Liushagang Formation), the study was conducted. It is discussed that the geologic age of this stratum belongs to Late Eocene-Oligocene, and its flora, paleoclimate and paleoenvironment are discussed. The preliminary research identified spores have 50 families, 130 genera, more than 200 sporo-pollen types, of which 2 new species. Algae about 9 genera, a dozen types.