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particularly in the early Viséan to Serpukhovian,for example the Gnathodus praebilineatus - G.bilineatus bilineatus - G. bilineatus bollandensislineage, which is closely tied to ammonoid zonesin the Culm facies of Western and CentralEurope, and the Lochriea saharae - L. commutata- L. nodosa - L. ziegleri lineage. Moreover,progress has been made in recognizing the UpperViséan/Serpukhovian boundary, based on thefirst appearance datum (FAD) of Lochrieaziegleri.Greater precision in the dating and correlationof shallow-water platform facies has beenachieved using foraminiferans. Although evolutionarydevelopments in the Archaediscidae arestill of major importance in terms of biostratigraphicdating, alternative lineages have beenproposed recently for the late Asbian/Brigantian(late Viséan) interval, involving the Cribrospira- Bradyina - Parajanischewskina -Janischewskina lineage. These large cribratecomplexed-walled forms are widely recognizedthroughout Western Europe. The base of theViséan has recently been defined in South Chinausing foraminiferans with the FAD ofEoparastaffella simplex in the lineageEoparastaffella ovalis - E. simplex. The samecriterion has been used to define the base of theViséan (base of emended Moliniacian) in Belgium.Recent studies in Britain, Ireland, France,Spain and Poland have demonstrated that in theUpper Viséan many calcareous algal taxa andproblematica are widespread in their distributionthroughout the western Palaeotethys Realm.Moreover, five algal assemblages can be distinguished,based either on the first appearance ofcertain taxa or their acme developments, such asFalsocalcifolium punctatum and Calcifoliumokense. In addition, there have been new discoveriesin the Brigantian and Serpukhovian of algaltaxa and problematica such as Archaeolithophyllum,Paraepimastopora and Claracrusta thatwere regarded previously as being restricted tothe Pennsylvanian-Permian interval.Advances in rugose coral biostratigraphy havealso been made in the upper Tournaisian andUpper Viséan, particularly using dissepimentedtaxa which occur in shallow-water platforms.The presence of uraliniids and Keyserlingophyllumin the upper Tournaisian of Western Europe(Belgium) are also recognized in South Chinaand Siberia. In the Upper Viséan, refinements inzonation have been made using well-definedcolonial and solitary species and species groupsbelonging to the families Lithostrotionidae andAxophyllidae and solitary taxa of the familiesAulophyllidae and Cyathopsidae which are recognizedthroughout the western Palaeotethys.2008040526伊 拉 克 泥 盆 纪 - 石 炭 纪 序 列 的 相 和 沉 积 环 境 =Facies and depositional environments of the Devonian-Carboniferoussuccession of Iraq. ( 英 文 ).Al-Juboury A; Al-Hadidy A. Geological Journal,2008, 43(2-3): 383 - 396Facies associations and depositional environmentsof the Late Devonian-Early Carboniferoussuccession in Iraq have been studied in severalboreholes from north and northwestern Iraq. The>400 m-thick succession comprises the Kaista,Ora, Harur and Raha formations which are composedgenerally of mixed siliciclastic-carbonatefacies. The Kaista Formation consists of sandstonesintercalated with siltstones and calcareousshale that were deposited in a mixed fluvialmarineenvironment. The Ora Formation is composeddominantly of black shale with subordinatesandstone and dolomite deposited in a shallow-marine,sub-tidal shelf environment. TheHarur Formation is composed mainly of dolomitewith subordinate shale and was deposited ina deep sub-tidal environment. The Raha Formationconsists mainly of marine shales intercalatedwith sandstones and concluded theKaskaskia megasequence. The depositional settingis considered as a subsiding basin with awide geographic distribution. It extended fromthe Ora region in the extreme north of Iraq towest and southwestern Iraq and reflects an epicontinentalor epeiric sea setting on a homoclinalramp inclined to the southeast.2008040527摩 洛 哥 南 部 Anti-Atlas 东 北 部 Todrha 峡 谷 密西 西 比 亚 系 地 台 和 盆 地 序 列 = MississippianPlatform and Basin Successions from the TodrhaValley (northeastern Anti-Atlas), southern Morocco.( 英 文 ). Graham J R; Sevastopulo G D.Geological Journal, 2008, 43(2-3): 361 - 382Carboniferous rocks of Mississippian age areexposed in Jebel Asdaf and Jebel Tisdafine,south and north respectively of the faultcontrolledTodrha Valley, between the towns ofTinerhir and Tinejdad in the Anti-Atlas of southernMorocco. The age, as determined by microfossils,and facies of the dominantly siliciclasticsuccessions of the two areas are different. TheJebel Asdaf Formation (245 m exposed; baseand top not seen) is a shallow shelf sequence oflate Tournaisian age. The Jebel Tisdafine Formationis a succession of turbidites (at least 1500 mthick), which rests unconformably on Devonianlimestones and is of late Viséan age. Limestonebeds in each formation have different origins.Skeletal grainstones and packstones in the JebelAsdaf Formation formed when sand supply tothe shelf was episodically reduced. Ooid-richskeletal packstones and grainstones in the JebelTisdafine Formation, characterized also by the159