南极维多利亚地南部Carapace Nunatak中侏罗世孢粉植物群

MICROFLORA FROM SHAODONG MEMBER AT JIELING SECTION,HUNAN,CHINA

南极维多利亚地的费拉群孢粉植物群时代一直被认为是早侏罗世，从维多利亚地南部ＣａｒａｐａｃｅＮｕｎａｔａｋ费拉群火山岩夹层中发现的数量丰富、类型多样的孢粉化石（计３５属５４种），可与澳大利亚西部、阿根廷、印度及巴基斯坦孢粉植物群比较，推断费拉群时代应为中侏罗世，并很可能为中侏罗世早期。这一结论得到从相同地点获得的叶肢介化石的佐证。根据孢子花粉化石的可能植物亲缘关系，推断中侏罗世早期维多利亚地南部以掌鳞杉科植物较繁盛，并伴有桫椤科、里白科、紫萁科、网叶蕨科、马通蕨科、海金沙科、石松科、南美杉科、松科等植物，属温带亚热带气候。

The present paper is a continuation and complementary to the previous paper Microspores from Shaodong Member at Jieling Section of Hunan,China and their geological age(Lu Li chang,1995). 1 COMPOSITION OF THE PRESENT MICROFLORA In the previous paper the miospores comprise 42 genera and 101 species(including 7 combined species,91 known species,2 comparable species and 1 indeterminate species),namely, Acanthotriletes denticulatus Naumova, A.fastuosus (Naum.)Lu, A.hirtus Naumova, Anapiculatisporites hystricosus Playford, Anaplanisporites globutus (Butt.et Will.)Streel et Butterworth, Ancyrospora cf. furcula Owens, Aneurospora asthenolabrata (Hou)Lu, A.spinulifer Wen et Lu, Apiculiretusispora flexuosa Hou, A.gannanensis Wen et Lu, A.leberidos McGregor et Campfield, A.plicata (Allen)Streel, A.pseudozonolis Lu, Apiculatisporis morbosus Balme et Hassell, Auroraspora asperella (Kedo)Van der Zwan, A.macra Sullivan, Brochotriletes foveotatus Naumova, Clivosispora verrucata McGregor var. verrucata McGregor, Convolutispora ampla Hoffmeister,Staplin et Malloy, C.balmei Playford, C.crassa Playford, C.major (Kedo)Turnau, C.vermiformis Hughes et Playford, Cordylosporites papillatus (Naum.)Playford et Satterthwait, Crassispora imperfecta Lu, Cristatisporites limitatus Ouyang et Chen, Cyclogranisporites baoyingensis Ouyang et Chen, C.pisticus Playford, Cymbosporites cyathus Allen, Densosporites capistratus Hoffmeister et al.,D.crassus McGregor, D.secundus Playford et Satterthwait, D.spinifer Hoffmeister el al.,D.variomarginatus Playford, D.xinhaunensis Hou, Diaphanospora depressa (Balme et Hassell)Evans, D.submirabilis (Jush.)Lu, Dictyotriletes famenensis Naumova, Discernisporites macromanifestus (Hacquebard)Higgs,Clayton et Keegan, D.micromanifestus (Hacquebard)Sabry et Neves, D.papillatus Lu, D.varius Lu, Foveosporites inculptus Playford, F.pellucidus Playford et Helby, Geminospora lasius (Naum.)var. minor (Naum.)Lu, G.spingiata Higgs et al.,Grandispora cornutus Higgs, G.cumula (Higgs et Streel)Lu, G.echinata Hacquebard, G.eximia (Naum.)Lu. G.gracilis (Kedo)Streel, G.saurota (Higgs et al. )Playford et McGregor, Granulatisporites atratus (Naum.)Lu, G.humerus Staplin, Hymenozonotriletes angulatus Naumova, H.elegans (Waltz)Naumova, H.granulatus (Naum.)Jushen,(in Kedo), H.spicatus Lu, Knoxisporites dedaleus (Naum.)Lu, Laevigatosporites valgaris (Ibr.)Alpern et Doubinger, Leiotriletes crassus Lu, L.macrothelis Wen et Lu, L.microthelis Wen et Lu, L.ornatus Ischenko, L.pyramidatus Sullivan, L. cf. subintertus (Walt)Ischenko,var. rotundatus Waltz, L.velatus (Caro Monieg)Streel, Lophotriletes atratus Naumova, L.magnus (Naum.)Lanninger, Lophozonotriletes torosus Naumova var. famenensis Naumova, Phyllothecotriletes rigidus Playford, Planisporites magnus (Naumova,in Kedo)Lu, Punctatisporites debilis Hacquebard, P.irrasus Hacquebard, P.planus Hacquebard, P.subtritus Playford et Helby, Pustulatisporites distalis Lu, Reticulatisporites cancellothyris (Waltz)Lu, R.minor (Naum.)Gao et Ye, Retispora casscicula (Higgs)Higgs et Russell, R.lepidophyta (Kedo)Playford, Retusotriletes avonensis Playford, R.crassus Clayton( In: Clayton et al.),R.rotundus (Streel)Lele et Streel, R.triangulatus,Spelaeotriletes crenulatus (Playford)Neves et Belt, S.crustatus Higgs, S.hunanensis (Fang,Steemana et Streel)Lu, S.obtusus Higgs, S.pretiosus (Playford)Neves et Belt, S.resolutus Higgs,(= S.microspinosus Neves et Ioannides in the present paper), S.setosus (Kedo)Lu, S.triangulatus Neves et Owens. Spelaeotriletes sp.of Wen et Lu(= S.fanxiaensis sp.nov.in the present paper), Velamisporites irrugatus Playford, V.perinatus (Hughes et Playford)Playford, Verruciretusispora megaplatyverrca Lu et Ouyang, Verrucosisporites mesogrumosus (Kedo)Bycscheva, V.morulatus (Konx)Potonié et Kremp, V.pa