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lunzensis Stur nom. nud. and Pterophyllum neuberiStur nom. nud. The diagnosis for a fourthspecies, Nilssonia sturii Krasser, is emended.The Nilssonia species from Lunz range amongthe earliest representatives of the genus Nilssonia.2008040133西 班 牙 特 鲁 埃 尔 利 奥 马 丁 峡 谷 中 阿 尔 比 期 裸子 植 物 = Middle Albian gymnosperms from theRío Martín Valley (Teruel, Spain). ( 法 文 ).Sender L M; Diez J B; Pons D; Villanueva-Amadoz U; Ferrer J. Comptes RendusPalevol, 2008, 7(1): 37-49The fossil-rich site within the Albian EscuchaFormation in the Oliete Sub-basin, located in theNortheast of Spain, has provided a great abundanceof impressions, including leave remainsand seed cones of Coniferales (Sphenolepis kurriana,Sphenolepis sternbergiana, Elatides curvifolia,Brachyphyllum sp. and Geinitzia sp. cf.G. rigida), leaves of Caytoniales (Sagenopteriselliptica), Ginkgoales (Ginkgoites pluripartita,and Sphenobaiera sp. cf. S. longifolia), Bennettitales(Ptilophyllum sp. cf. P. pecten and aff.Zamites sp.), Cycadales (Nilssonia tenuinervisand Ctenozamites with entire and denticulatepinnae margins), Czekanowskiales, and reproductivestructures of Gnetales. The gymnospermremains are fairly abundant in the upper member,built up of sediments deposited in fluvial andswamp environments without marine influence.The different gymnosperm associations in thisoutcrop indicate a wide variety of environmentsin a subtropical climate, and a mixture of NorthAmerican and European taxa in the Iberian plateduring the Middle Albian2008040134阿 根 廷 内 乌 肯 省 白 垩 纪 Rayoso 组 和 Huincul组 Baieroxylon 和 Circoporoxylon 属 新 种 =New species of Baieroxylon Greguss and CircoporoxylonKrausel, in Rayoso and Huincul Formations(Cretaceous), Neuquen Province, Argentina.( 法 文 ). Martinez L C A; Lutz A I.Ameghiniana, 2007, 44(3): 537-546Gymnosperm woods from Neuquen Provinceare studied for the first time. Their xylematiccharacters allowed distinguish two new species,Baieroxylon patagonicum sp. nov. from the ElMangrullo (Rayoso Formation) and Circoporoxylonkrauseli sp. nov. from Cerros Colorados(Huincul Formation). The presence of thesetwo new species increases our knowledge of thexyloflorisctic composition in the area during theCretaceous. Also, the environmental conditionscould be inferred through the analysis of secondaryxylem features in which that species grew.Baieroxylon patagonicum sp. nov. probablygrew under tropical to subtropical conditionswithout marked seasons and an abundant hydricregimen while Circoporoxylon krauseli sp. nov.grew under mesophytic conditions2008040135宁 夏 晚 宾 夕 法 尼 亚 亚 系 斯 蒂 芬 期 裸 子 植 物 木化 石 新 种 Zalesskioxylon xiaheyanense = Zalesskioxylonxiaheyanense sp. nov., a gymnospermouswood of the Stephanian (Late Pennsylvanian)from Ningxia, northwestern China.( 英 文 ). Zhuo Feng Zhuo; Wang Jun; ShenGuanglong. Journal of Asian Earth Sciences,2008, 33(3/4): 219-228A new Late Pennsylvanian species of gymnospermousfossil wood, Zalesskioxylon xiaheyanensesp. nov. is described from the LowerTaiyuan Formation (Stephanian B-C) near thevillage of Xiaheyan, Ningxia Hui AutonomousRegion, northwestern China. The specimen consistsonly of silicified secondary xylem. The tracheidsare pycnoxylic with 2–3 seriate borderedpits, arranged in subcircular or hexagonal alternate(araucaroid) pattern. The pores of the pitsare small, linear, and regularly tilted. Xylem raysare homogeneous, uniseriate, 1–25 cells high.Cross-fields are filled with numerous mixedsimple pits of various sizes. Growth rings, axialparenchymatous elements and resin canals areabsent. The geographic distribution of Zalesskioxylonwoods is reviewed. Zalesskioxylon xiaheyanensesp. nov. grew at low latitudes, andbecause of the lack of growth rings, probablylived under relatively uniform climatic conditions.Our new species supplements the poorlyknown distribution of Carboniferous wood inChina.2008040136吉 林 汪 清 下 白 垩 统 发 现 Pseudofrenelopsisgansuensis 及 其 与 中 国 白 垩 纪 红 层 关 系 的 意义 = Discovery of Pseudofrenelopsis gansuensisfrom the Lower Cretaceous of Wangqing,JilinProvince,and Its Significance in Correlation ofCretaceous Red Beds in China. ( 英 文 ). YangXiaoju; Deng Shenghui. Acta GeologicaSinica, 2007, 81(6): 905-910New data from abundant vegetative shootsand cuticular analysis are provided for the Cretaceouscheirolepidiaceous conifer Pseudofrenelopsisgansuensis Deng,Yang et Lu.The materialwas found from a new locality of theLower Cretaceous strata in the Luozigou Basin,Wangqing,JilinProvince,northeasternChina.Pseudofrenelopsis is a common plant inthe Dalazi Formation of the Yanji Basin about150 km from Wangqing,but there exists differentspecies,Pseudofrenelopsis dalatzensis only.BothP.dalatzensis and P.gans...41