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ane have been previously reported from only afew reconnaissance studies. More than 3000 mof strata have been measured and examined indetail and 85 conodont samples collected. A totalof 926 identifiable conodont elements areassigned to 31 species representing 21 genera.The conodonts are mainly representative of theMidcontinent Faunal Realm, but some also representthe Atlantic Realm. Conodonts from theupper Kechika Formation and base of the RoadRiver Group are Early Ordovician (Tremadocian)in age, and those from the upper Road RiverGroup range into the Upper Ordovician (Caradocian).The detailed Ordovician stratigraphyand temporal constraints established by conodontbiostratigraphy provide for correlation tocoeval facies of ancestral North America. Theonset of Road River sedimentation in the mid-Tremadocian is, however, older than that in theMacdonald Platform to the east (earlyArenigian). This onset timing may help link theCassiar Terrane to a specific part of the miogeoclinefrom which it was transported2008040075澳 大 利 亚 二 叠 纪 - 三 叠 纪 过 渡 期 牙 形 石 及 二 叠纪 - 三 叠 纪 界 线 的 位 置 = Conodonts from thePermian - Triassic transition in Australia andposition of the Permian - Triassic boundary. ( 英文 ). Metcalfe I; Nicoll R S; Willink R J. AustralianJournal of Earth Sciences, 2008, 55(3): 365-377Late Permian (late Changhsingian), possibleEarly Triassic Induan (Dienerian), and earlyOlenekian (Smithian) conodonts have been recoveredfrom the Hovea Member of the KockateaShale in the exploration well Corybas 1,northern Perth Basin, Western Australia. Placementof the biostratigraphic Permian - Triassicboundary is in the lower part of the SapropelicInterval of the Hovea Member. The Australianendemic Protohoploxypinus microcorpus palynofloralZone is confirmed to be of late (butnot latest) Changhsingion age. The Permian -Triassic boundary, based on international calibrationusing conodonts, carbon-isotope stratigraphyand new radio-isotopic dating, is placedin the lower part of the Kraeuselisporites saeptatusand Lunatisporites pellucidus Zones ofwestern and eastern Australia, respectively,which corresponds approximately to the basalpart of the Rewan Group and equivalents ineastern Australia.2008040076中 奥 陶 世 苏 格 兰 Midland 峡 谷 Lanark andStrathmore 盆 地 老 红 砂 岩 下 部 砾 岩 中 灰 岩 碎屑 里 的 牙 形 石 微 体 古 生 物 学 研 究 = Conodontmicropalaeontology of mid-Ordovician agedlimestone clasts from Lower Old Red Sandstoneconglomerates, Lanark and Strathmore basins,Midland Valley, Scotland. ( 英 文 ). Armstrong HA. Journal of Micropalaeontology, 2000, 19(part1): 45-59Mid-Ordovician limestone clasts in the LowerOld Red Sandstone conglomerates of the Lanarkand Strathmore basins of the Midland Valley,Scotland, were derived from a cryptic carbonateplatform, now hidden beneath the Southern UplandsAllochthon. These have yielded 17 multielementspecies of conodonts, which are systematicallydescribed herein and include the eponymousbiozonal species Pygodus serra and Pygodusanserinus. The fauna represents an outershelf-ocean margin biofacies, found only in UpperOrdovician conglomerates in the SouthernUplands and the Malopolska Terrane, Poland2008040077阿 根 廷 前 科 迪 勒 拉 阿 什 吉 期 牙 形 类 的 首 次 发现 = First record of Ashgillian conodonts in theArgentine Precordillera. ( 其 他 ). Heredia S.Ameghiniana, 2008, 45(1): 59-68A reworked conodont fauna from the EmpozadaFormation (Mendoza Precordillera) whichbelongs to the Caradoc-Ashgill (British Seriesfrom the Upper Ordovician) interval is reviewed.For the first time Amorphognathus cf. ordovicicusBranson & Mehl, 1933 is identified inArgentina. This species together with A. superbus,define the late Caradoc-earliest Ashgill ofthe Precordillera. The recovered conodont faunais similar in composition with those of the BritishProvince of the North Atlantic Realm, suggestingclose relationships between both areas.小 壳 化 石2008040078华 南 瓮 安 埃 迪 卡 拉 陡 山 陀 组 管 状 微 体 化 石 的系 统 描 述 及 系 统 发 育 亲 缘 = Systematic descriptionand phylogenetic affinity of tubularmicrofossils from the Ediacaran Doushantuoformation at Weng'an, South China. ( 英 文 ). LiuPengju; Xiao Shuhai; Yin Chongyu; ZhouChuanming; Gao Linzhi; Tang Feng. Palaeontology,2008, 51(2): 339-366This paper provides a systematic treatment oftubular microfossils collected from dolomiticphosphorites of the Ediacaran Doushantuo Formationat Weng'an, South China. These microfossilswere investigated using petrographic,acid extraction and re-embedding techniques.Four morphological genera and five morphospeciesare described: Ramitubus increscens gen. etsp. nov., Ramitubus decrescens gen. et sp. nov.,Sinocyclocyclicus guizhouensis, Quadratitubusorbigoniatus, and Crassitubus costatus gen. et sp.nov. They are characterized by cylindrical (R.24