Occurrence of Persea Mill. from the Siwalik Forest of Darjeeling, Eastern Himalaya: Paleoclimatic and Paleogeographic Implications

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    摘要 FossilleafremainsoftwonewspeciesofPerseaMill.,belongingtothefamilyLauraceaecollectedfromthelowerpartoftheSiwaliksediments(GishClayFormationofSevokGroup,MiddleMiocene)ofDarjeelingfoothillsofeasternHimalaya,aredescribed.ThenewspeciesarePerseamiogambleisp.nov.andPerseaneovillosasp.nov..Onthebasisofleafarchitecture(size,shapeandvenationpattern)fossilleavesdescribedinthisarticlecloselyresemblemodernleavesofPerseagamblei(KingexHook.f.)Kosterm.andPerseavillosa(Roxb.)Kosterm..ThegeographicdistributionofthefossilsandtheirmoderncounterpartsarediscussedandonthatbasistropicalevergreenvegetationwithawarmandhumidclimateatthetimeofdepositionoftheSiwaliksedimentsissuggestedincontrasttothepresentdaytropicaldeciduousvegetationinthisarea.ThepresentfindingalsosuggestsprobablemigrationoftheselauraceoustaxatoSoutheastAsia.
    机构地区 不详
    出版日期 2016年05月15日(中国Betway体育网页登陆平台首次上网日期,不代表论文的发表时间)
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