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Cowan River Formations, Lee Creek mine, northCarolina,USA. ( 英 文 ). Snyder S W; Mauger L L.Journal of Foraminiferal Research, 2001, 31(3):244-274Pliocene deposits assignable to the YorktownFormation (Sunken Meadow, Rushmere, andMorgarts Beach Members) and Chowan RiverFormation (Edenhouse Member) yielded 129species and subspecies of benthic foraminifera.Twenty-six taxa, selected on the basis of consistentoccurrence (present in 50% or more of thesamples) and relative abundance (3% or more ofthe benthic assemblage in at least one sample),account for 88% of the identifiable specimens.From among these 26, principal componentsanalysis identified 14 species that account fornearly 90% of the faunal variation, and clusteranalyses revealed distinct stratigraphic assemblagesthat in general conform to the lithologicsubdivisions. The most dramatic faunal changecorresponds to the boundary between the SunkenMeadow and Rushmere Members. Based uponthe benthic foraminiferal faunas, the SunkenMeadow, Rushmere, and Morgarts Beach Membersof the Yorktown Formation were depositedin middle to outer neritic, outer neritic, and middleneritic environments, respectively. TheEdenhouse Member of the Chowan River Formationwas deposited in an inner to middleneritic environment. Paleobathymetric interpretationsbased on benthic foraminifera are consistentwith those based on other fossil groups.Paleotemperature implications of the benthicforaminiferal assemblages are not entirely consistentwith previous studies. Whereas numerousstudies have concluded that Pliocene temperaturesat middle and high latitudes were significantlywarmer than modern temperatures, thebenthic foraminiferal faunas encountered in ourstudy suggest paleotemperatures comparable tothose of today. Evidence from benthic foraminiferaat the Lee Creek Mine is not sufficientbasis to question studies indicating warmermid-latitude Pliocene seas. Rather, it is likelythat localized conditions have overprinted thelarger-scale climatic signal.2008040246Maastrichtian 晚 期 全 球 变 暖 事 件 中Pseudotextularia elegans 的 古 生 物 地 理 学 =Paleobiogeography of Peudotextularia elegansduring the latest Mastrichtian global warmingevent. ( 英 文 ). Olsson R K; Wright J D. Journalof Foraminiferal Research, 2001, 31(3): 275-282A latest Maastrichtian global warming event,which began approximately 450 k.y. and endedabout 22 k.y. prior to the K/T boundary, is associatedwith the pole-ward migration of thewarm-water planktonic foraminifer Pseudotextulariaelegans. The warming event was apparentlyinititated by greenhouse warming due tothe main outpouring of the Deccan Traps in Indiaand is now well documented in the North andSouth Atlantic Oceans and in North America bythe poleward migration of warm-water planktonicforaminifera and subtropical vegetation. Acooling trend ca 22 kyr prior to the K/T boundarycaused marine 18O values to return to climaticconditions recorded prior to the onset ofwarming and thus does not represent a significantchange in long-term climate. Planktonicforaminifera responded by migration to the latestMaastrichtian global warming and cooling beforetheir mass extinction at the K/T.2008040247亚 德 里 亚 地 区 的 Palorbitolina lenticularis—古 地 理 和 演 化 的 意 义 = Palorbitolina lenticularisfrom the northern Adriatic region: paleogeographicaland evolutionary implications. ( 英文 ). Husinec A. Journal of Foraminiferal Research,2001, 31(4): 287-293 1 图 版 .Samples bearing Palorbitolina were obtainedfrom three localities on the islands of Cres andLoinj in the northern Adriatic. Although a relativelysmall number (