鱼 类2008040413大 西 洋 鳕 的 冰 期 残 存 物 : 古 生 态 和 遗 传 之 间的 一 致 性 = Ice-age survival of Atlantic cod:agreement between palaeoecology models andgenetics. ( 英 文 ). Bigg G R; Cunningham C W;Ottersen G; Pogson G H; Wadley M R; Williamson.Proceedings of the Royal Society B: BiologicalSciences, 2008, 275(1631): 163-172Scant scientific attention has been given to theabundance and distribution of marine biota in theface of the lower sea level, and steeper latitudinalgradient in climate, during the ice-age conditionsthat have dominated the past millionyears. Here we examine the glacial persistenceof Atlantic cod (Gadus morhua) populationsusing two ecological-niche-models (ENM) andthe first broad synthesis of multi-locus gene sequencedata for this species. One ENM uses amaximum entropy approach (Maxent ); the otheris a new ENM for Atlantic cod, using ecophysiologicalparameters based on observed reproductiveevents rather than adult distribution. Boththe ENMs were tested for present-day conditions,then used to hindcast ranges at the last glacialmaximum (LGM) ca 21kyr ago, employing climatemodel data. Although the LGM range ofAtlantic cod was much smaller, and fragmented,both the ENMs agreed that populations shouldhave been able to persist in suitable habitat onboth sides of the Atlantic. The genetic resultsshowed a degree of trans-Atlantic divergenceconsistent with genealogically continuous populationson both sides of the North Atlantic sincelong before the LGM, confirming the ENM results.In contrast, both the ENMs and the geneticdata suggest that the Greenland G. morhuapopulation post-dates the LGM.2008040414俄 罗 斯 晚 泥 盆 世 肺 鱼 Orlovichthys limnatis头 颅 和 牙 齿 系 统 = The skull and tooth systemof Orlovichthys limnatis, a Late Devonian dipnoanfrom Russia. ( 英 文 ). Krupina N I; Reisz RR; Scott D. Canadian Journal of Earth Sciences,2001, 38(9): 1301-1311The cranial anatomy of Orlovichthys limnatis,a Famennian, Late Devonian dipnoan from theOrel region of central Russia, is described on thebasis of an almost completely preserved skull, amandible, and numerous elements of the dentition.Orlovichthys is distinguished from othertooth-plated Devonian dipnoans by its relativelynarrow skull and its predatory type of tooth-platemorphology on the pterygoid and prearticular.The marginal dentition of Orlovichthys, whichextends transversely across the edge of the ossifiedethmoid (upper lip) and along the anteriorand lateral edges of the dentary, also appears tobe organized as tooth plates. The distribution ofmarginal dentition among Devonian dipnoansand their probable organization as tooth platesprompts us to suggest that an important developmentalconstraint may have been associatedwith the dipnoan dentition throughout the longhistory of this group.2008040415加 拿 大 麦 肯 齐 山 志 留 纪 棘 鱼 的 新 种 = Newspecies of Silurian acanthodians from theMackenzie Mountains, Canada. ( 英 文 ). Hanke GF; Wilson M V; Lindoe L A. Canadian Journalof Earth Sciences, 2001, 38(11): 1517-1529Two new acanthodian taxa are described. Theischnacanthid Xylacanthus kenstewarti is basedon large, dentigerous jaws, and Granulacanthusjoenelsoni is based on isolated spines. The isolatedremains of these species are similar in thatthey both possess pustulose denticles or tubercles,either on the mesial ridge (X. kenstewarti)or on the fin spines (G. joenelsoni). Jaws of X.kenstewarti are similar in size to those of Xylacanthusminutus, Ischnacanthus kingi, and I.wickhami and smaller than those of X. grandis.The jaws of X. kenstewarti are most similar tothose of X. minutus, but are distinguished fromthis and other ischnacanthid species by a taperingpatch of pustulose denticles that is widestmidway along the jaw, mesial denticles that aresimple blisterlike structures, the monocuspid,striated primary teeth that are subcircular incross section, and a posterodorsal process that isenlarged. The spines of G. joenelsoni have distinctivetubercular ornamentation. Tubercles, ornodular ornaments on fin spines, are characteristicof primitive acanthodians, but the slendershape of the spines, the low number of spine ribs,and the fine striations posterior to the main ribsof each spine suggest that G. joenelsoni is a relativelyadvanced acanthodian. Xylacanthus kenstewartiand G. joenelsoni are from the Silurian(Wenlock or Ludlow) of the southern MackenzieMountains. Xylacanthus kenstewarti representsthe earliest representative of the genus, the earliestunequivocal remains of a gnathostome fromthe Mackenzie Mountains, and extends theknown geographical range of the genus from theMackenzie Mountains east to Spitsbergen.2008040416大 不 列 颠 Coniacian, Santonian 及Campanian ( 上 白 垩 统 ) 真 鲨 目 鲨 鱼 =Sharks of the order Carcharhiniformes from theBritish Coniacian, Santonian and Campanian(Upper Cretaceous). ( 英 文 ). Underwood C J;Ward D J. Palaeontology, 2008, 51(3): 509-536Bulk sampling of phosphate-rich horizonswithin the British Coniacian to Campanian (Up-128
per Cretaceous) yielded very large samples ofshark and ray teeth. All of these samples yieldedteeth of diverse members of the Carcharhiniformes,which commonly dominate the fauna. Thefollowing species are recorded and described:Pseudoscyliorhinus reussi (Herman, 1977) comb.nov., Crassescyliorhinus germanicus (Herman,1982) gen. nov., Scyliorhinus elongatus (Davis,1887), Scyliorhinus brumarivulensis sp.nov., ?Palaeoscyllium sp., Prohaploblepharusriegrafi (Müller, 1989) gen. nov., ?Cretascyliorhinussp., Scyliorhinidae incertae sedis 1,Scyliorhinidae incertae sedis 2, Pteroscylliumhermani sp. nov., Protoscyliorhinus sp., Leptochariascretaceus sp. nov., PalaeogaleushavreensisHerman, 1977, Paratriakis subserratussp. nov., Paratriakis tenuis sp. nov., Paratriakissp. indet. and ?Loxodon sp. Taxa belonging tothe families ?Proscylliidae, Leptochariidae andCarcharhinidae are described from the Cretaceousfor the first time. The evolutionary andpalaeoecological implications of these newlyrecognised faunas are discussed.2008040417法 国 加 来 海 峡 Boulonnais 中 泥 盆 世 最 早 的 全头 鱼 化 石 = The oldest holocephalan (Chondrichthyes)from the Middle Devonian of theBoulonnais (Pas-de-Calais, France). ( 英 文 ). DarrasL; Derycke C; Blieck A; Vachard D.Comptes Rendus Palevol, 2008, 7(5): 297-304The Couderousse Member of the BlacourtFormation in the Banc-Noir quarry, Ferquesinlier, Boulonnais (Pas-de-Calais, France) hasyielded a tooth plate whose morphology is similarto that of Synthetodus, which is considered aholocephalan. Its histology is made of an outerenameloid-like tissue, and an inner trabeculardentine. Its occlusal surface shows a beanshapedbulge. This tooth plate was preparedfrom a limestone that is dated from the Middle–Upper varcus Conodont Zone, that is lower upperGivetian. This limestone has also yielded aPokorninella bricae–Rothpletzella–Tentaculitesassemblage, which is indicative of an environmentof the inner to middle marine platformboundary. This specimen appears to be the oldestconfirmed holocephalan (‘bradyodont’) toothplate for which the name Melanodus loonesi nov.gen. et sp. is erected.两 栖 类2008040418中 亚 吉 尔 吉 斯 斯 坦 Fergana 盆 地 BalabansaiSvita 中 侏 罗 世 两 栖 类 = Amphibians from theMiddle Jurassic Balabansai Svita in the Ferganadepression, Kyrgyzstan (Central Asia). ( 英 文 ).Averianov A; Martin T; Skutschas P P; RezvyiA S; Bakirov A. Palaeontology, 2008, 51(2):471-485Larval and metamorphosed Ferganobatrachusriabinini (Temnospondyli, Brachyopoidea),metamorphosed Kokartus honorarius (Caudata,Karauridae), an indeterminated karaurid(Karauridae indet.) and, presumably, anurans(?Anura indet.) are represented by isolated cranialand postcranial skeletal elements in theMiddle Jurassic (Bathonian–Callovian) BalabansaiSvita of the Fergana Depression, Kyrgyzstan.The Balabansai vertebrate assemblage is one ofthe few faunas in which non-lissamphibian temnospondyls,stem caudates and anurans occurtogether. The presence of a supraglenoid foramenand a complex strap-like glenoid on thescapulocoracoid in Kokartus supports its basalphylogenetic position within the Caudata.2008040419日 本 下 白 垩 统 一 早 期 草 食 蜥 蜴 = An earlyHerbivorous Lizard from the Lower Cretaceousof Japan. ( 英 文 ). Evans S E; Manabe M. Palaeontology,2008, 51(2): 487-498The Lower Cretaceous Tetori Group of Japanhas yielded diverse freshwater and terrestrialvertebrate assemblages. The most productivesmall vertebrate locality is the 'Kaseki-Kabe' or'fossil-bluff' at Kuwajima, Hakusan City, IshikawaPrefecture. These deposits have producedat least six distinct lizard taxa of which one, describedand named here as Kuwajimalla kagaensis,has lanceolate denticulate teeth convergenton those of the living Iguana. This type of dentitionis rare among living lizards and is usuallyconsidered indicative of herbivory and, morespecifically, folivory. Kuwajimalla kagaensisprovides the earliest unambiguous record ofsquamate herbivory. Comparisons with modernand fossil lizards suggest that Kuwajimalla maybe an early relative of the macrocephalosaurines,a group of large herbivores well represented inthe Upper Cretaceous of Mongolia.爬 行 类2008040420中 国 东 北 发 现 早 白 垩 世 一 种 新 的 长 丝 状 皮 肤的 巨 大 新 颌 龙 = A New Giant CompsognathidDinosaur with Long Filamentous Integumentsfrom Lower Cretaceous of Northeastern China.( 英 文 ). Ji Shu’an; Ji Qiang; Lü Junchang; YuanChongxi. Acta Geologica Sinica, 2007, 81(1): 8-15A new compsognathid dinosaur, Sinocalliopteryxgigas gen. et sp. nov., is erected based on acomplete skeleton from the Early CretaceousYixian Formation of western Liaoning, northeasternChina. It shares the features withHuaxiagnathus orientalis in having a manus as129
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第 4 卷 第 4 期古 生 物 学
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Fossils, i.e. remains of living org
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nus, a new ichnospecies of Fuersich
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以 松 柏 类 和 盾 籽 类 为
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Island, Papua New Guinea. ( 英 文
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A C. Canadian Journal of Earth Scie
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mated depositional interval of 10 t
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北 海 古 近 纪 一 种 新 型
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scabrate-verrucate, and rugulate mi
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the Tetori Group in the Kuzuryu are
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during the Late Pleistocene are rec
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ane have been previously reported f
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Albian-early Paleocene in the Anady
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Poaceae and Plantago lancelata. shr
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the eastern segment of its southern
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member of the La Despedida Formatio
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lembaye (Maastricht region) and fro
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tion the ontogenetic stage of the p
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早 期 种 子 植 物2008040123
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中 国 内 蒙 古 东 北 部 晚
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2008040137辽 西 北 票 中 侏
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综 论2008040144低 PH 值 对 Amm
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ut poorly studied. Dimorphism (or t
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and migration towards the sediment-
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schackoinids, indicating that the e
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( 英 文 ). Nomaki H; Yamaoka A; S
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新 西 兰 Otago 南 海 岸 全
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Scotland. ( 英 文 ). Murray J W.
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A three-year sediment trap experime
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a habitat disturbance and is nearly
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Pitted surfaces associated with wal
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Saanich than exists today sedimento
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was pulsed, with major declines usu
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mycelium, was observed where reticu
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suggest that reticulopodia are self
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to OIS 3, compared to the more stab
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Patterson R T. Journal of Foraminif
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意 大 利 北 亚 平 宁 Lamone
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nano record further into the early
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lankovitch-scale frequency. Analyse