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Creek Limestone of the Molong High. It resembles the pear-shaped dasycladacean Apidium Stolley but has a circlet of from 4 to 7 large pores on its upper surface and exhibits budding from one or more of these pores 2009020148 奥地利卡尔阿尔卑斯北部晚侏罗世钙质绿藻一新种 : Halimeda misiki = Halimeda misiki n. sp., a new calcareous green alga from the Late Jurassic of the Northern Calcaeous Alps (Austria). ( 英文 ). Schlagintweit F; Dragastan O; Gawlick H J. Neues Jahrbuch fur Geologie u. Palaontologie / Abhandlungen, 2008, 248(2): 171-182 New species is described from the Late Jurassic Plassen Carbonate Platform of Austria. Other occurrences are reported from the Western and Eastern Carpathians, Morocco and Sicily/Italy. Halimeda misiki is characterized especially by a microcrystalline (micritic) thallus appearence and cortical filaments distinctly inclined to the longitudinal axis. The new species was found in shallow water peri-reefal cabonates of platform margin facies and resediments in the adjacent hemipelagic basins. 2009020149 加拿大北极地区东部巴芬岛高分辨晚冰期和早全新世硅藻记录 = A high-resolution late-glacial and early Holocene diatom record from Baffin Island, eastern Canadian Arctic. ( 英文 ). Wolfe A P. Canadian Journal of Earth Sciences, 1996, 33(6): 928–937 An interval of late-glacial to early Holocene sedimentation, spanning the period 12.9 – 8.4 ka BP ( 14 C dated by accelerator mass spectrometry), is contained within 15 cm of gyttja in a core from a small lake on southwestern Cumberland Peninsula, Baffin Island. This sediment was subsampled in continuous 2.5 mm increments for diatom analysis. Extremely low sediment accumulation rates (~1.8 cm ka −1 ) are characteristic of the initial phase of organic sedimentation, but they increase rapidly (to 14.2 cm ka −1 ) after 9 ka BP. The first 0.5 cm of gyttja contained an acidophilous diatom flora resembling that of underlying mineral sediments. Thereafter, and throughout the late glacial and earliest Holocene, diatom floras were dominated by alkaliphilous and circumneutral species of Fragilaria. Around 9 ka BP, shifts to acidophilous floras dominated by Brachysira brebissonii, and, later, Eunotia rhomboidea and Frustulia rhomboides vars. saxonica and crAn interval of late-glacial to early Holocene sedimentation, spanning the period 12.9 – 8.4 ka BP (14C dated by accelerator mass spectrometry), is contained within 15 cm of gyttja in a core from a small lake on southwestern Cumberland Peninsula, Baffin Island. This sediment was subsampled in continuous 2.5 mm increments for diatom analysis. Extremely low sediment accumulation rates (~1.8 cm ka−1) are characteristic of the initial phase of organic sedimentation, but they increase rapidly (to 14.2 cm ka−1) after 9 ka BP. The first 0.5 cm of gyttja contained an acidophilous diatom flora resembling that of underlying mineral sediments. Thereafter, and throughout the late glacial and earliest Holocene, diatom floras were dominated by alkaliphilous and circumneutral species of Fragilaria. Around 9 ka BP, shifts to acidophilous floras dominated by Brachysira brebissonii, and, later, Eunotia rhomboidea and Frustulia rhomboides vars. saxonica and crassinervia, suggest a period of natural lake acidification. High diatom production accompanied the lowered lake-water pH, which reflects, respectively, the paleolimnological response to an early Holocene climatic optimum, and progressive depletion of lake alkalinity sources. There is no evidence of diatom or sediment responses attributable to the Younger Dryas oscillation, implying that deglacial reorganizations of the North Atlantic Ocean did not necessarily affect paleoclimatic conditions in the southern Cumberland Sound region assinervia, suggest a period of natural lake acidification. High diatom production accompanied the lowered lake-water pH, which reflects, respectively, the paleolimnological response to an early Holocene climatic optimum, and progressive depletion of lake alkalinity sources. There is no evidence of diatom or sediment responses attributable to the Younger Dryas oscillation, implying that deglacial reorganizations of the North Atlantic Ocean did not necessarily affect paleoclimatic conditions in the southern Cumberland Sound region. 2009020150 新生代海洋浮游生物硅藻的分异动力 = Diversity dynamics of marine planktonic diatoms across the Cenozoic. ( 英文 ). Rabosky D L; Sorhannus U. Nature, 2009, 457(7226): 183-186 48
Diatoms are the dominant group of phytoplankton in the modern ocean. They account for approximately 40% of oceanic primary productivity and over 50% of organic carbon burial in marine sediments 1 . Owing to their role as a biological carbon pump 2 and effects on atmospheric CO 2 levels 3, 4, 5 , there is great interest in elucidating factors that influenced the rapid rise in diatom diversity during the past 40 million years 6, 7 . Two biotic controls on diversification have been proposed to explain this diversity increase: (1) geochemical coupling between terrestrial grasslands and marine ecosystems through the global silicon cycle; and (2) competitive displacement of other phytoplankton lineages. However, these hypotheses have not been tested using sampling-standardized fossil data. Here we show that reconstructions of species diversity in marine phytoplankton reject these proposed controls and suggest a new pattern for oceanic diatom diversity across the Cenozoic. Peak species diversity in marine planktonic diatoms occurred at the Eocene– Oligocene boundary and was followed by a pronounced decline, from which diversity has not recovered. Although the roles of abiotic and biotic drivers of diversification remain unclear, major features of oceanic diatom evolution are decoupled from both grassland expansion and competition among phytoplankton groups 2009020151 堪察加西部海相古近纪硅藻新资料 = New data on diatoms from the marine Paleogene of Western Kamchatka. ( 英文 ). Oreshkina T V. Stratigraphy and Geological Correlation, 2009, 17(3): 331-345 Diatom assemblages from the marine Paleogene of Western Kamchatka (the Kovachina, Viventek, and Kuluven formations) are studied. The shallow-water neritic assemblage from the Kovachina Formation of the Pyatibratskii Cape section is tentatively attributed to the middle Eocene, as it is lacking zonal index species. A high abundance and great taxonomic diversity are characteristic of diatoms from the upper part of the Viventek Formation in the Kovran River section. The zonal index species Cavitatus rectus identified here among the diatoms suggests that the respective assemblage is macerated from the synonymous diatom zone of the middle Oligocene (29.6−28.2 Ma). According to its taxonomic composition and structure, this assemblage is indicative of transgression environments and the presumable influence of the middle Oligocene climatic optimum. The Rocella gelida (upper part) and Thalassiosira praefraga diatom zones of the Oligocene- Miocene transition are established in the Kuluven Formation sediments of the Mt. Uvuch section in Kovachina Bay. 地衣植物苔藓植物 2009020152 澳大利亚塔斯马尼亚西部早更新世沉积中的苔藓植物 = Mosses from Early Pleistocene sediments in western Tasmania. ( 英文 ). Jordan G J; Dalton P J. Alcheringa, 1995, 19(4): 291 - 296 Macrofossils of six terrestrial and epiphytic taxa from five families of moss (Musci) occur in Early Pleistocene sediments at Regatta Point, western Tasmania. These are: Ptychomnion aciculare and Weymouthia mollis, which are clearly the same as modern southern Australian species; Echinodium hispidum and Thuidium sp., which are probably modern species; a species of Papillaria that appears to no longer occur in southeastern Australia; and one unidentified taxon. All are likely to have been species of wet forest or stream sides, and suggest that well-established rainforest occurred locally, at least in riparian areas. 蕨类植物 ( 广义 ) 2009020153 关于晚古生代圆印木属 ( 石松纲 ) 的命名问题 = A Nomenclatural Note On The Late Palaeozoic Genus Cyclostigma (Lycopsida). ( 英文 ). 张静 ; 王祺 . 古生物学报 , 2008, 47(3): 369-376 文章讨论晚古生代木本石松植物圆印木属 Cyclostigma 命名中存在的突出问题 . 包括 4 个方面 :1) 圆印木属的合格发表和作者引证 ;2) 圆印木属的异名、同名和替代名 ;3) 圆印木属的保留 ;4) 圆印木属的模式。基于相关原始文献和国际植物命名法规 . 文中澄清了这些命名问题。Hecr 在 1871 年最早合格发表了 , 圆印木属 . 故该属应被引证为 Cyclostigma Haughton ex Hcer . 1871 .( 或 Cyclostigma Hcer , 1871 ). 而不是文献中通常引证的 Cyclostigma Haughton.1860( 或 1859)。圆印木属不宜归入具叶舌的窝木属 Botkrodendron Lindlcy et Hutton.1833. 二者相关的生殖器官特征差别也较大。圆印 49
Page 2 and 3: 第 5 卷第 2 期古生物学
Page 4 and 5: calcite in 38% sulphuric acid. The
Page 6 and 7: 2009020010 细胞过度生长
Page 8 and 9: edistribution of continents, orogen
Page 10 and 11: Turner E C; Burdige D J. Geology, 2
Page 12 and 13: 遗迹化石 2009020028 美国
Page 14 and 15: trackways from Fumanya (south-east
Page 16 and 17: 华盛顿奥林匹克半岛
Page 18 and 19: sequenced and analysed the genome o
Page 20 and 21: estuarine sediments: Chezzetcook In
Page 22 and 23: preserved in the gypsum crystals of
Page 24 and 25: 文 ). Lian O B; Mathewes R W; Hico
Page 26 and 27: Lower Cretaceous of Santa Cruz prov
Page 28 and 29: sediments of the Zhuravka and Abros
Page 30 and 31: Flores Formation is exposed along t
Page 32 and 33: egion in Late Permian times was pro
Page 34 and 35: Chlorogloeaopsis contexta, Obruchev
Page 36 and 37: deposition of organic-rich, low-oxy
Page 38 and 39: 东攀剖面二叠纪末期
Page 40 and 41: econcile with Ediacaran trace and b
Page 42 and 43: 2009020121 中国西北兰州
Page 44 and 45: Paleontologica Argentina, 2008, 45(
Page 46 and 47: 始新世至中始新世早
Page 48 and 49: assemblage is highly dominated by m
Page 52 and 53: 木属的 3 个同名 Cyclostig
Page 54 and 55: Ceratopteris are from the Eocene of
Page 56 and 57: covering of the spore mass. Ultrast
Page 58 and 59: Southern Floristic Province. It imp
Page 60 and 61: An anatomically preserved mature st
Page 62 and 63: and predation between the two ocean
Page 64 and 65: endemic or Andean forms and others
Page 66 and 67: islands" (Taylor and Wilson, 2003)
Page 68 and 69: analysis, SHE Community Structure I
Page 70 and 71: 2009020208 安第斯火地岛
Page 72 and 73: Miolepidocyclina, Nephrolepidina, E
Page 74 and 75: alaskensis n. gen. and sp., Virgula
Page 76 and 77: y the fissispongiid Fissispongia ja
Page 78 and 79: to a revival of Kiderlen's (1937) h
Page 80 and 81: gentle and slow extinction speed an
Page 82 and 83: Two new bryozoan species are descri
Page 84 and 85: onset of Lopingian recovery/radiati
Page 86 and 87: ut also found in the paterinates. I
Page 88 and 89: is reinstated as the reference for
Page 90 and 91: three species are widespread in the
Page 92 and 93: Caenogastropoda displayed considera
Page 94 and 95: Western Canada Province of the Old
Page 96 and 97: originally referred to Cypraea cont
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of septal folding is still, however
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subspecies originally referred to a
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persisting in the Dry Valleys until
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Great Estuarine Group (Jurassic) of
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have been extended as a result of t
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Otekaike Limestone an inner shelf e
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arthropods (Notostraca and Insecta:
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with a lichenocrinid holdfast, and
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Gotland, in Homerian (upper Wenlock
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terms of growth and development. Gr
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characterises the genus Ditrupa and
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Middle-Late Devonian. A new onychod
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hachirhinchus. Here, we describe ne
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segmented pectoral fin. The small u
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两栖类离片椎类中褶
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南非卡洛下三叠统 Kat
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Formation (Lower - Middle Campanian
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traits evolved in Theropoda. Our re
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2009020428 联合王国威尔
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vestigial or absent 'A' horn-cores,
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anterior dorsal vertebrae and proba
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2009020449 谢佩岛下始新
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Ka BP. Canids in this assemblage in
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collaboration avec le regrett é Pr
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Eucyon remains from the Pliocene Ar
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Megatheriidae) from the Arroyo Chas
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The trilophodont gomphothere group
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oldest representative of Eobaatar i
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ugose, almost spongy aspect; suture
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Neues Jahrbuch fur Geologie u. Pala
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ca 500 kyr toward the precessional
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subdivided in detail in Russia shou
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sediments were deposited in an intr
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Group 1 gneiss-migmatitic rocks (ca
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and implies that these two continen
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1.6 Ma, that is to say, the isotopi
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millipede remains. A review of the
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Kimmeridgian-early Tithonian, Titho
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2009020548 藏东南特提斯
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events and their induced harsh envi
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esearchers, here we suggest that th
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adjacent paleosols that differ in t
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generally consistent northeast tren
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Palaeoclimatology Palaeoecology, 20
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stratigraphic context. Nevertheless
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esponsible for fossil orientation:
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sulfide assemblages in them, of Cen
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south of the island. The occurrence
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ecords in the Jiuquan Basin, northw
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Myr younger than hitherto considere
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