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东攀剖面二叠纪末期牙形石动物群 : 浅水相与深水相的对比 = End-Permian conodont fauna from Dongpan section: Correlation between the deep-and shallow-water facies. ( 英文 ). Luo Genming; Lai Xulong; Feng Qinglai; Jiang Haishui; Wignall P; Zhang Kexin; Sun Yadong; Wu Jun. Science in China Series D: Earth Sciences, 2008, 51(11): 1611-1622 This paper systematically investigated the conodonts from the uppermost Permian to the Lower Triassic at the Dongpan Section, Southern Guangxi, South China, and obtained abundant Late Permian conodonts from the syndepositional limestone lenses of beds 3 and 5-2 at this section. One genus and eight species of conodont P1 element including one new species, Neogondolella dongpanensis sp. nov., have been identified. The feature of conodont fauna indicates that conodonts collected from beds 3 and 5 at the Dongpan Section belong to the Neogondolella yini conodont zone, and correspond to bed 24 at the Meishan Section. Based on these conodont data, we suggest that the Neoalbaillella optima radiolarian zone at the Dongpan Section at least extended to the upper part of the N. yini conodont zone. 2009020108 澳大利亚东部维宪系的牙形类生物地层 = Conodont biostratigraphy of the Visean Series in eastern Australia. ( 英文 ). Jenkins T B H; Crane D T; Mory A J. Alcheringa, 1993, 17(3): 211 - 283 Conodonts from Visean limestones of the Yarrol and Tamworth Belts of Queensland and New South Wales are, in general, sparsely preserved but widespread and about equally divided between endemic and cosmopolitan species. Patrognathus conjunctus sp. nov. is the commonest conodont in the early Visean and gave rise to Montognathus semicarinatus gen. et sp. nov. and to M. carinatus gen. et sp. nov., the trio being name-bearers for three zones based on endemic elements. The fourth and highest Visean zone has the mondial Gnathodus texanus and Gnathodus bilineatus as joint nominate species, the latter being included in the zonal name to emphasise the restricted definition we adopt for G. texanus. Adetognathus also probably evolved from Patrognathus to give a lineage of three new endemic species: — A. taphrognathoides, A. cannindahensis and A. subunicornis, all predating the earliest adetognathids of the northern continents. Cavusgnathus altifrons sp. nov. is intermediate in platform morphology and time-range between late Tournaisian Clydagnathus and late Mississippian species of Cavusgnathus; Synprioniodina thompsoni sp. nov., likewise seems to be intermediate between S. pulchra and Hindeodus cristula. Other new taxa are: Mestognathus convexus, Vogelgnathus angustus, Gnathodus rugulatus and G. girtyi maxwelli. Described and illustrated but left in open nomenclature are Adetognathus sp. A, Cudotaxis sp. A, Gnathodus sp. A, and Rhachistognathus sp. J. Conodont zones and brachiopod zones give generally accordant divisions, apparent discrepancies being attributable to zonal boundaries locally lacking sufficient data control or being influenced by major facies changes. Approximate limits are indicated in the sequences of eastern Australia for the Lower (VI), Middle (V2) and Upper (V3) divisions of the Visean, account being taken of ages suggested in the recent literature on ammonoids, algae and foraminifera. No evidence is found for any major hiatus in the Visean although regional disconformities mark its base in the Hunter Valley, N.S.W. and its top in parts of the Yarrol-Rockhampton area 2009020109 密西根盆地西北部下志留统 ( 阿伦尼克阶 ) 大化石和牙形类生物相 = Lower Silurian (Aeronian) megafaunal and conodont biofacies of the northwestern Michigan Basin. ( 英文 ). Watkins R; Kuglitsch J J. Canadian Journal of Earth Sciences, 1997, 34(6): 753– 764 Lower Silurian (Llandovery: Aeronian) carbonates of the Burnt Bluff Group, northwestern Michigan Basin, represent a transect along a southward-dipping ramp that extends from tidal-flat to basin environments. Benthic megafaunas include an ostracod biofacies (tidal flat), stromatoporoid – coral biofacies (very shallow subtidal), pentamerid, crinozoan, and crinozoan – stromatoporoid biofacies (deeper subtidal), and a crinozoan– sponge biofacies (distal ramp and basin). The crinozoan–sponge biofacies, which includes diverse, small crinozoan ossicles, 19 types of siliceous sponge spicules, and at least 65 other taxa, has a biota that is similar to those of Silurian continental margins. Megafaunal biofacies indicate an Early Silurian gradient going from a shoreline in the north to water depths of perhaps 60 m in the south. The 36
Burnt Bluff Group contains conodonts of the Icriodella discreta – Icriodella deflecta zone as an onshore biofacies with Panderodus, Kockelella, Ozarkodina, Icriodella, and Oulodus, and an offshore biofacies with Panderodus, Walliserodus, and Aspelundia. 2009020110 加拿大阿巴拉契亚晚奥陶世牙形类的大地构造和古地理意义 = Tectonic and paleogeographic significance of Late Ordovician conodonts in the Canadian Appalachians. ( 英文 ). Nowlan G S; McCracken A D; McLeod M J. Canadian Journal of Earth Sciences, 1997, 34(10): 1521–1537 Conodonts of Late Ordovician age are well represented in Laurentian parts of eastern Canada, but are rare in the Appalachian orogenic belt. They are known from the Anticosti Basin, the Matapedia Belt, and the Exploits Subzone of the Dunnage Zone. Two new discoveries are described: one from unnamed strata on Markey Brook, westcentral New Brunswick, and one from the Goss Point Formation (Avalon Zone, southwestern New Brunswick). Faunas from the Anticosti Basin are of undoubted Midcontinent Faunal Region affinity. Those from the Matapedia Belt are highly mixed both paleoecologically and provincially, containing elements of shallow- and deepwater Midcontinent affinity and elements typical of the Atlantic Faunal Region. Faunas from the Exploits Subzone and Markey Brook are also mixed, suggesting endemic faunas of Atlantic affinity with local influx of Midcontinent faunas from Laurentia. The Goss Point Formation, previously believed to belong to the Mascarene Group (a Silurian cover sequence on the Avalon Zone), also yields mixed faunas. Provincial mixing of all faunas east of the Anticosti Basin suggests that Late Ordovician faunas around Iapetus Ocean may have been more homogeneous than earlier Ordovician faunas. Therefore, the Iapetus Ocean may have been smaller or current patterns may have changed to permit trans-Iapetan migration. A strong global pattern of provincialism for Late Ordovician conodonts is recognized and a new Australasian Province is proposed. Conodonts permit identification of a previously unrecognized Ordovician volcanosedimentary succession that has economic and tectonic implications for the region. 小壳化石 2009020111 骨骼微形态结构指示开腔骨类和赫尔克壳类关系紧密 = Skeletal microstructure indicates Chancelloriids and Halkieriids are closely related. ( 英文 ). Porter S M. Palaeontology, 2008, 51(4): 865 - 879 Chancelloriids are problematic, sac-like animals whose sclerites are common in Cambrian fossil assemblages. They look like sponges, but were united with the slug-like halkieriids in the group Coeloscleritophora Bengtson and Missarzhevsky, 1981 based on a unique mode of sclerite construction. Because their body plans are so different, this proposal has never been well accepted, but detailed study of their sclerite microstructure presented here provides additional support for this grouping. Both taxa possess walls composed of a thin, probably organic, sheet overlying a single layer of aragonite fibres orientated parallel to the long axis of the sclerite. In all halkieriids and in the chancelloriid genus Archiasterella Sdzuy, 1969, bundles of these fibres form inclined projections on the upper surface of the sclerite giving it a scaly appearance. On the lower surface of the sclerite, the projections are absent. This microstructure appears to be unique to chancelloriids, halkieriids, and their relatives, siphogonuchitids and sachitids. (The sclerites of another putative halkieriid relative, Wiwaxia Walcott, 1911, are unmineralized, making direct comparisons impossible.) Thus, similarity both at the level of sclerite construction and the level of sclerite microstructure suggests that chancelloriid, halkieriid, sachitid, and siphogonuchitid sclerites are homologous. The difference in chancelloriid and halkieriid body plans can be resolved in two ways. Chancelloriids either represent a derived condition exhibiting complete loss of bilaterian characters or they represent the ancestral condition from which the bilaterally symmetric halkieriids, and the Bilateria as a whole, derived. The latter interpretation, proposed by Bengtson (2005), implies that coeloscleritophoran sclerites ('coelosclerites') are a plesiomorphy of the Bilateria, lost or transformed in descendent lineages. Given that mineralized coelosclerites appear in the fossil record no earlier than c. 542 Ma, this in turn implies either that the Ediacaran record of bilaterians has been misinterpreted or that coelosclerite preservability increased at the beginning of the Cambrian Period. The former is difficult to 37
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 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 50 and 51: Creek Limestone of the Molong High.
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
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is reinstated as the reference for
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three species are widespread in the
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Caenogastropoda displayed considera
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Western Canada Province of the Old
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originally referred to Cypraea cont
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the Late Triassic mass extinction b
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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
Page 198 and 199:
Myr younger than hitherto considere
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