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通过对赣东北上饶地区宋村、司铺和东山村3条剖面保存的植物化石全面研究,讨论了赣东北安源组地层分布特征,安源植物群的组成、特征及其地质时代.鉴定并统计安源植物群有28属60种,其中苏铁类及本内苏铁类11属33种,占植物群总数55.0%,居植物群首位;真蕨类5属11种,占植物群总数18.3%,居植物群第2位;种子蕨4属6种,占植物群总数10.0%;有节类2属3种,占植物群3.0%,然而丰度高;银杏类4属5种,占8.3%,松柏类及繁殖器官2属2种,占3.4%.该植物群归于晚三叠世Ptilozamites-Anthrophyopsis组合.安源植物群组成分子中,喜湿植物14种,占植物群23.3%,耐旱植物46种,占植物群76.7%,属于半潮湿型.喜热植物45种,占植物群75.0%,广温植物15种,占植物群25.0%,属炎热型,代表中国南方滨海型热带亚热带半潮湿气候.
Through the comprehensive study of plant fossils preserved in Songhua, Shibu and Dongshancun, Shangrao, northeastern Jiangxi Province, the stratigraphic distribution, the composition and characteristics of Anyuan flora and its geological age are discussed. Statistics Anyuan flora has 28 genera and 60 species, of which cycads and 11 genus Cyclobalanopsis 33 species, accounting for 55.0% of the total flora, ranking first in flora; true fern 5 genera 11 species, accounting for 18.3% of the total flora, , Ranking second in the flora; seed fern 4 genus 6 species, accounting for 10.0% of the total flora; genus 2 genus 3 species, accounting for 3.0% of the flora, but high abundance; ginkgo 4 genus 5, accounting for 8.3 %, 2 species of coniferous and reproductive organs belong to 2 species, accounting for 3.4% .The flora belongs to the Late Triassic Ptilozamites-Anthrophyopsis combination.Anyuan flora composition, 14 kinds of hi-wet plants, accounting for 23.3% of the flora, 46 kinds of drought-tolerant plants, accounting for 76.7% of the flora, belonging to the semi-humid type. 45 kinds of hi-heat plants, accounting for 75.0% of the flora, 15 species of broad-leaved plants, accounting for 25.0% of the flora, is a hot type, on behalf of southern China Coastal Tropical subtropical semi-humid climate.