吐鲁番-哈密盆地早二叠世晚期植物群

LATE EARLY PERMIAN ANGARA FLORA FROM TURPAN-HAMI BASIN

首次记述了吐鲁番－哈密盆地的早二叠世晚期植物１１属１３种（包括４新种和４未定种），这是一个以科达类及其相关属为主的安加拉植物群。典型的安加拉植物Ｖｏｊｎｏｖｓｋｙａ属的发现，不但在时代的判定上，而且在植物地理区划上都具重要意义。文中还对这一植物群的特征和时代问题作了简要讨论。

The discovery of late Early Permian Angara flora from the Turpan--Hami basin is ofgreat significance not only in botany but also in palaeogeography.The fossil plants described herein comprise 11 genera and 13 species(including 4 new species). This flora is composed of. Thallites sp.,.Annularia of. undulata Neub.,Paracalamites vicinalis Radcz.,'P. of. decoratus (Eicbw.) Zal., Phyllotheca? sp., PecOPteris sp.,.COrdal:tes latifolius (Neub.) Meyen, C. of. singularis (Neub.) Meyen, Rufloria derzavinii(Neub.) Meyen, Crassinervia kuznetskiana (Chachl.) Neub., NephrOPsis hamiensis sp. nov., Nephropsis sp., Vojnovskya hamiensis sp. nov., Cardiocarpus cordal(Gem.) Gu et Zhi, Cardiocarpus sp., Samaropsis hamiensis sp. nov. and Carpolithus yirshituensis sp. nov. (those with asterisks have not been described). Among them,VOjnovskya is the most important genus of stratigraphical and palaeogeographical significance, recorded from Russia (the Pechora and Kuznetsk basins and southern Primorie) and southern Mongolia.The present paper also deals with the botanical characteristics of the late Early Permian flora,the age and correlation of the plant--bearing strata in the Turpan--Hami basin as well.