Untitled

More documents

Recommendations

Info

arcellacean strains from within the same speciesare useful for discriminating environments. Cucurbitellatricuspis dominates most samples andhad to be deleted from analysis to determinebenthic faunal relationships. This species is seasonallyplanktic and thus readily transported; itshould not be considered in intralake studies.Arcella vulgaris overwhelmingly dominates extremelyhostile low pH environments (
includes the Pulleniatina group, Neogloboquadrinadutertrei, Globorotalia tumida and G.menardii. Group B is dissolution resistant andalso characterizes the Kuroshio Current. (2)Group C consists of Neogloboquadrina pachyderma(dextral), N. incompta and Turborotaliainflata, all indicative of "relatively cold" water.(3) Group D composed of Globigerina bulloidesand Globigerinella calida suggests influence ofcoastal water invasion.2008040275加拿大 Territories 西北 Bylot 岛全新世淡水湖泊中的有壳变形虫 = Holocene Thecamoebiansin freshwater lakes on Bylot Island, NorthwestTerritories, Canada. ( 英文 ). Kliza D A;Schroeder-Adams C J. Journal of ForaminiferalResearch, 1999, 29(1): 26-36 3 图版 .Thecamoebian assemblages were studied intwo short cores from kettle lakes on Bylot Island,Canadian high arctic, within an area bounded by72 degrees and 74 degrees N and 75 degrees and82 degrees W. Cores did not provide suitablematerial for absolute age dating. Based onknown sedimentation rates of other arctic lakes,however, the time interval covered by lake coresreflect sedimentation during the Holocene ofapproximately the last 5000 years. On the BylotIsland lowlands, a low species diversity witheleven thecamoebian species was identifiedwhereas five lakes sampled on the Salmon Riverlowlands around Pond Inlet were barren of thecamoebians.Thecamoebian tests typically havea coarse texture. The shallower of the two lakeson Bylot Island is dominated by Difflugia globulus.The assemblage found in the deep lake containsnine taxa with a distinct transition fromDifflugia globulus dominance in the lower halfof the core to a Difflugia oblonga dominatedassemblage in the upper half. D. oblonga prefersorganic-rich substrates and its dominance coincideswith an increase of organic material in thecore. Late Holocene thecamoebian abundancefluctuates in the shallow lake whereas the deeplake is characterized by more constant numbers.Faunal results in both lakes show that local environmentalfactors have to be considered to explainpaleolimnological changes.2008040276异时性对 Morozovella angulata 的地层产出的影响 = The influence of heterochrony on thestratigraphic occurrence of Morozovella angulata.( 英文 ). Kelly D C; Arnold A J. Journal ofForaminiferal Research, 1999, 29(1): 58-68 3 图版 .Praemurica uncinata displays pronouncedallometry during its evolutionary transformationinto Morozovella angulata, an important speciesin Paleocene planktic foraminiferal biostratigraphy.The allometry is such that smaller specimensof P. uncinata resemble large specimens ofthe descendant, M. angulata. Biometric analysisof populations spanning this paedomorphic evolutionarytransition reveals that the event is recordedover an interval of 10.69 meters in sedimentsfrom the DeSoto Canyon, Gulf of Mexico,and involves specimens ranging in size from lessthan 100 to more than 300 mu m. Over this sizerange, failure to recognize the interdependenceof size and shape can lead to discordant zonationswhen biostratigraphers identify the firstappearance datum of Morozovella angulata afterusing different sieve sizes during standard laboratorytreatment of their samples.2008040277埃及沙漠西部的 Nummulites luterbacheri 的早期进化演化特征 = Early progressive evolutionaryfeatures in Nummulites luterbacheri fromthe Western Desert of Egypt. ( 英文 ). Wielandt U.Journal of Foraminiferal Research, 1999, 29(2):130-142 2 图版 .Detailed morphometric data on the recentlydiscovered nummulitid Nummulites luterbacherifrom the earliest Eocene of the Western Desertof Egypt are presented and the description of thespecies is emended.The microspheric generationis 4 to 5 times larger than the largest individualsof all other associated nummulites and even itsmacrospheric forms are larger than the microspheresof these others. particularly the size ofthe proloculus in the A-forms, spiral multiplication,the development of several small polarpiles, and the complex septal fluting are veryprogressive characters and exceptional amongsuch early Ypresian nummulites. N.luterbacherifits in none of the pubished phylogenetic lineagesbut does show some affinity toN.praecursor and N.atacius. The morphologicalcharacters of Nummulites luterbacheri indicatean evolutionarily advanced species yet it cooccurswith some of the first and most primitivenummulites: N. deserti, N.solitarius and N.fraasi. Thus several architectural elements occurin Nummulits luterbacheri long before they aregenerally thought to have developed during thephylogeny of the genus.2008040278有机炭变化对底栖有孔虫的含量和分布模式的影响 = Scaling percentages and distributionalpatterns of benthic Foraminifera with flux ratesof organic carbon. ( 英文 ). Altenbach A V;Pflaumann U. Journal of Foraminiferal Research,1999, 29(3): 173-185Seafloor organic matter flux from marine primaryproductivity is quantified, and the range of89
Page 2 and 3:
第 4 卷第 4 期古生物学
Page 4:
Fossils, i.e. remains of living org
Page 8 and 9:
nus, a new ichnospecies of Fuersich
Page 10 and 11:
以松柏类和盾籽类为
Page 12 and 13:
Island, Papua New Guinea. ( 英文
Page 14 and 15:
A C. Canadian Journal of Earth Scie
Page 16 and 17:
mated depositional interval of 10 t
Page 18 and 19:
北海古近纪一种新型
Page 20 and 21:
scabrate-verrucate, and rugulate mi
Page 22 and 23:
the Tetori Group in the Kuzuryu are
Page 24 and 25:
during the Late Pleistocene are rec
Page 26 and 27:
ane have been previously reported f
Page 28 and 29:
Albian-early Paleocene in the Anady
Page 30 and 31:
Poaceae and Plantago lancelata. shr
Page 32 and 33:
the eastern segment of its southern
Page 34 and 35:
member of the La Despedida Formatio
Page 36 and 37:
lembaye (Maastricht region) and fro
Page 38 and 39:
tion the ontogenetic stage of the p
Page 40 and 41: 早期种子植物2008040123
Page 42 and 43: 中国内蒙古东北部晚
Page 44 and 45: 2008040137辽西北票中侏
Page 46 and 47: 综论2008040144低 PH 值对 Amm
Page 48 and 49: ut poorly studied. Dimorphism (or t
Page 50 and 51: and migration towards the sediment-
Page 52 and 53: schackoinids, indicating that the e
Page 54 and 55: ( 英文 ). Nomaki H; Yamaoka A; S
Page 56 and 57: 新西兰 Otago 南海岸全
Page 58 and 59: Scotland. ( 英文 ). Murray J W.
Page 60 and 61: A three-year sediment trap experime
Page 62 and 63: a habitat disturbance and is nearly
Page 64 and 65: Pitted surfaces associated with wal
Page 66 and 67: Saanich than exists today sedimento
Page 68 and 69: 2008040208大堡礁区域绿
Page 70 and 71: was pulsed, with major declines usu
Page 72 and 73: mycelium, was observed where reticu
Page 74 and 75: suggest that reticulopodia are self
Page 76 and 77: to OIS 3, compared to the more stab
Page 78 and 79: Patterson R T. Journal of Foraminif
Page 80 and 81: known xenophyophore species grouped
Page 82 and 83: aminiferal Research, 2001, 31(4): 2
Page 84 and 85: arctic environment over this critic
Page 86 and 87: Semeniuk T A. Journal of Foraminife
Page 88 and 89: sible to make production calculatio
Page 92 and 93: annual flux rates is calculated and
Page 94 and 95: corded in the Colli Berici (type lo
Page 96 and 97: most complete OAE 2 sections. While
Page 98 and 99: oceanic plate stratigraphy from gra
Page 100 and 101: A series of layers rich in organic
Page 102 and 103: lowermost Danian planktonic foramin
Page 104 and 105: characters shows that only one geno
Page 106 and 107: able for regional palaco-environmen
Page 108 and 109: margin of the southwest Caribbean.
Page 110 and 111: Brachyelasma, Amplexobrachyelasma,
Page 112 and 113: litic biozones lower than their FAD
Page 114 and 115: The middle Permian Cryptospirifer f
Page 116 and 117: 石科 = Ammonoid faunas from the
Page 118 and 119: Buchiid bivalves are geographically
Page 120 and 121: velopment of both the sedimentary a
Page 122 and 123: China. ( 英文 ). Huang Diying; N
Page 124 and 125: 德国南部上侏罗统 (Ox
Page 126 and 127: shelf basin off the northern coast
Page 128 and 129: like base referred to Primocandelab
Page 130 and 131: 鱼类2008040413大西洋鳕
Page 132 and 133: long as the humerus plus radius, ve
Page 134 and 135: members in both size and abundance
Page 136 and 137: ple's Republic of China. ( 英文
Page 138 and 139: K-P transition in Brazil. ( 英文
Page 140 and 141:
wide tooth crowns, a sub-rectangula
Page 142 and 143:
2008040459罗马尼亚特兰
Page 144 and 145:
logical descriptions of all availab
Page 146 and 147:
东副特提斯晚萨马期
Page 148 and 149:
S; Vaiani S C. Rivista Italiana di
Page 150 and 151:
adiocarbon dating the arrival of th
Page 152 and 153:
able problems, particularly differe
Page 154 and 155:
done with glyphs on paper. In this
Page 156 and 157:
obtained through extensive field-ba
Page 158 and 159:
noli G; Maletz J; Stouge S. Canadia
Page 160 and 161:
法国蒙塔格尼努尔中
Page 162 and 163:
presence of well-rounded, coarse-sa
Page 164 and 165:
缅甸北部 Hukawng 峡谷琥
Page 166 and 167:
graphy and Geological Correlation,
Page 168 and 169:
plex,northwestern Iran. ( 英文 )
Page 170 and 171:
松辽盆地晚白垩世青
Page 172 and 173:
ous nannoplankton) points of view.O
Page 174 and 175:
the"Yanshan Movement".During the Mi
Page 176 and 177:
geochemical approach discussed in t
Page 178 and 179:
sediments from the northern shelf o
Page 180 and 181:
意大利北亚平宁 Lamone
Page 182 and 183:
nano record further into the early
Page 184:
lankovitch-scale frequency. Analyse
show all

Untitled

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?