亚化石的

Based on the analysis on brachiopod fossils of the late middle Permian,the brachiopod extinction in Pre-Lopingian event of late middle Permian in this area can be divided into two sub screens: the first screen in the end of earlier Wushisanti Subage a...

通过川渝地区中二叠世晚期的腕足动物化石资料的研究，表明本地区中二叠世晚期的乐平世事件中腕足动物的灭绝可划分为前后2个不同的次级幕：早期的五十三梯亚期之末的第一幕和晚期的倒钻岩亚期之末的第二幕，且第二幕的灭绝规模要比第一幕更大。

Based on the analysis on brachiopod fossils of the late middle Permian, the brachiopod extinction in The Lopingian event of late middle Permian in this area can he divided into two sub screens: the first screen in the end of earlier Wushisanti Subage and the second screen in the end of later Daozuanyan Subage. The second screen's extinct scope is larger than the first screen's.

通过川渝地区中二叠世晚期的腕足动物化石资料的研究，表明本地区中二叠世晚期的乐平世事件中腕足动物的灭绝可划分为前后2个不同的次级幕：早期的五十三梯亚期之末的第一幕和晚期的倒钻岩亚期之末的第二幕，且第二幕的灭绝规模要比第一幕更大。

Basal synthem is the Taishan mountain group in archaean, is mainly the gneiss; The paleozoic synthem besides the regional lost stratas: Upper Ordovician, Silurian-Devonian and Lower Carboniferous, other stratas have the distribution, divides into Cambro-ordovician and Permo-Carboniferous two structure subgroups. Cambro-ordovician is a set of carbonate construction, Permo-Carboniferous system is a set contains the coal clastic rock deposition; In the mesozoic synthem lost Upper Triassic and Upper Crataceous ,growth Middle-Lower Triassic and Middle-Lower Jurassic and Lower Crataceous three structure subgroups, main growth varicolored land facies clastic rock, discovered rich fossil data such as cryptogam ,Ostracoda and Chareae and so on.

基底构造层指太古界泰山群，主要为片麻岩；古生界构造层除区域性缺失的上奥陶统、志留-泥盆系和下石炭统外，其余地层均有分布，分为冷武-奥陶系和石炭-二叠系两个构造亚层，冷武-奥陶系为一套碳酸盐建造，石炭-二叠系为一套含煤碎屑岩沉积；中生界构造层缺失上三叠统和上白垩统，发育下-中三叠统、下-中侏罗统和上侏罗-下白垩统三个构造亚层，为杂色陆相碎屑岩，发现丰富的孢粉、介形类、轮藻等化石；新生界古近系岩性以砂泥岩互层为主，含薄层油页岩，新近系-第四系为一套河流相沉积。

Yellow-throated marten\'s relationship is between Stone marten and Fisher marten.Fisher marten is the first species who was divided from Martes.The second one were Yellow-throated marten and Stone marten.Based on the analysis of the fossil note,Martes came from Central Europe,Fisher marten,Yellow-throated marten and Stone marten belonged to a branch which evolved to temperate zone.Boreal forest martens was another branch which evolved to cold environment.It is suggested that Yellow-throated marten and Fisher martenwere ascertained genus separately.4、By contrasting and analyzing 11 complete mitochondrial control region gene sequences of Mustelidae,the extended termination associated sequence domain、the central domain and the conserved sequence block domain were identified.A extended termination associated sequence(ETAS1) and eight conserved sequence(CSB-F、E、D、C、B、1、2、3) was indicated,and sequence mode was presented.Different kind of short repeat sequences were found between CSB1 and CSB2.With wolf as the outgroup,the phylogenetic evolution relationship of Mustelidae was analyzed using the neighbor-joining method.

而基于鼬亚科动物线粒体DNA12种重链编码蛋白基因序列及石貂和渔貂线粒体ND2和cyt b全序列，以狼、狗獾和水獭为外类群，应用NJ、MP和ML法构分别构建貂属和貂熊的系统进化树，结果表明：紫貂与日本貂亲缘关系较美洲貂近，石貂与真貂亚属亲缘关系较近，黄喉貂介于石貂和渔貂之间；渔貂是最早从貂属分化出的种类，其次是黄喉貂和石貂；结合化石记录分析，貂属起源于中欧地区，渔貂、黄喉貂和石貂属于一个向温带进化的分支，而真貂亚属为另外一个向寒冷环境进化的分支，建议将黄喉貂和渔貂分别定为单独的属。4、比对并分析11种鼬科动物线粒体DNA控制区序列，识别出延长终止序列区、中央区和保守序列区3个区域，指出了一个终止相关序列ETAS1及8个保守序列(CSB-F、E、D、C、B、1、2和3)，并给出了序列通式，在CSB1和CSB2之间发现具有不同形式的短串联重复序列。

The main purpose of careful observations on external appearance and internal anatomy is to throw light on the evolution of the modem family Pinaceae:To Pinus, attention is paid to the relation of different subgenera, sections and subsections; to Pseudoaraucaria and Pityostrobus, through analysis of the extinct types, trying to clear the evolution relations among all genera so as to finish the systematic tree is of most importance. Currently there are two hypotheses, i.e. Pinus center theory and Pseudoaraucaria branch theory.

对松科化石球果进行细致的外部形态及内部结构的研究主要目的在于演化关系的探讨上：对于Pinus，主要探讨这个属内各个亚属、组、亚组之间的演化关系；对于Pityostrobus和Pseudoaraucaria，通过绝灭类型的分析，探索松科内各个类群的演化关系进而完成进化树是研究的主要方向，现在这方面已有了Pinus中心说及Pseudoaraucaria分支说两个假说。

The earliest and reliable Castanopsis fossil records date back at least to Eocene, and subfamily Castaneoideae fossil records found from Paleocene, it is indicated that appearance of Castanopsis is not later than Paleocene . All fossil records of Fagaceae and Castanopsis report from the Northern Hemisphere and their main distribution regions are in the Northern Hemisphere . It can be concluded that the Northern Hemisphere is the center of origin of Fagaceae and Castanopsis . However, owing to the discrepancy between fossil data and results of modern botany research as well as scarcity of fossil data from key area, precise center of origin of Castanopsis cannot be inferred.

栲属在地质历史上有着比现在广泛的分布，最早、最可靠的栲属化石记录发现于始新世地层，栗亚科化石在古新世就有发现，化石记录表明栲属起源的时间不晚于古新世，所有的壳斗科及栲属的化石都发现于北半球，现代分布也主要在北半球，壳斗科及栲属起源于北半球可以确认，由于化石证据与现代植物学的研究结果有较大差异以及关键地区化石证据的不足，具体的起源地尚不能肯定。

Fleshy flattened twigs scarcely or sparsely branched;2.Leaf loosely spirally arranged,decurrent,partly covered or incompletely tocompletely encircling the stem,with numerous longitudinal striations on their abaxialsurface;3.Leaf thick in substance,hypostomatic;4.Stomata arranged in longitudinal...

本文对这些化石的形态特征和表皮构造进行了详细的研究，研究结果说明它们彼此有着系统演化上的联系，应属于同一个自然类群，并提出它们的分类位置应属于伏脂杉科的希默杉亚科的新意见。

The Pennsylvanian strata contain abundant benthos fossoils, including kinds of reef-building organisms. These reef-building organisms built different reefs in which the main typs are Fomitchevella coral framework reefs, phylloid algae framework-barrier reefs, Ivanovia cf.

宾夕法尼亚亚纪地层中含有极为丰富的底栖生物化石，其中包括多种造礁生物并建造了不同类型的生物礁，主要礁体有：Fomitchevella珊瑚骨架礁、叶状藻骨架－障积礁、Ivanovia cf。

The fungus, called Gliocladium roseum and discovered growing inside the ulmo tree in northern Patagonia, produces a range of hydrocarbon molecules that are virtually identical to the fuel-grade compounds in existing fossil fuels.

这种真菌叫做粉红粘帚霉，生长于巴塔哥尼亚北部的心叶船形果树上，能产生各种烃分子，从本质上讲和化石燃料的成分是相同的。

The Ethiopian amber forest grew in a time when diversified and changed the terrestrial ecosystems, Schmidt wrote in an email.

施密特在电子邮件中写道：&发现琥珀化石的埃塞俄比亚森林生长于一个开花树种扩大和改变陆地生态系统的时期。&

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了