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本文中的孢粉组合获自湖南桃源三阳港。这个组合包括40多个属,50来个种(其中有两个新种)。组合中占优势的是希指蕨属和克拉梭粉属,它们分别可达10.9—31.6％和7.2—20.1％。希指蕨孢属包括有库兰德希指蕨孢、光型希指蕨孢、细肋希指蕨孢等八、九个种。其他的孢子有无突肋纹孢属(3.1—6％),南京短突肋纹孢等。被子植物花粉只占1.1—4.2％,有三沟粉属、网纹三沟粉属,还有个别有疑问的三孔沟粉,未见到三孔粉属。组合的时代被归入早白垩世阿普梯—阿尔卑期。
The sporopollen assemblage in this paper was obtained from Sanyang Port, Taoyuan, Hunan Province. This combination includes more than 40 genera and 50 species (of which two are new). The dominant species in the assemblages is the genus Pteridium and the genus Kraton, which are respectively 10.9-31.6% and 7.2-20.1%. Hsien means Fern spores include Cuilandexi refers to the fern spores, light-type fern spores Syringa, fine rib Greek fern spore eight, nine species. The other spores with or without rib rib genus (3.1-6%), Nanjing short ribs rib spore and so on. Angiosperm pollen accounted for only 1.1-4.2%, there are three furrows genus, grooved three groove powder genus, as well as some doubt the three hole ditch powder, did not see the three-hole powder genus. The era of the assemblage was included in the Early Cretaceous Apid-Alp period.