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Ordovician ironstone of the Iberian margin: Coastal upwelling, ocean anoxia and Palaeozoic biodiversity
Published 2020-09-01Subjects: Get full text
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Digestive structures in Ordovician trilobites Colpocoryphe and Flexicalymene from the Barrandian area of Czech Republic
Published 2015-11-01Subjects: Get full text
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166
Controlling factors for effective reservoir development of Ordovician Kelimoli Formation in western Ordos Basin
Published 2023-05-01Subjects: Get full text
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167
Evolution and Hydrocarbon Accumulation of the Cambrian-Ordovician Paleo-uplifts in the Southwest Tarim Depression, China
Published 2021-02-01“…There is a close relationship between the evolution of the Cambrian–Ordovician paleo-uplifts and their hydrocarbon accumulation in the Southwest Tarim Depression. …”
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Ordovician gas exploration breakthrough in the Gucheng lower uplift of the Tarim Basin and its enlightenment
Published 2014-10-01“…A steady high yield natural gas flow was tapped in the Ordovician strata of Well Gucheng 6 drilled in the Gucheng lower uplift in the Tarim Basin in 2012, marking the discovery of another carbonate gas exploration field after the other two fields in the middle and northern Tarim Basin (the so called Tazhong and Tabei in the industry). …”
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169
Middle Ordovician astrochronology decouples asteroid breakup from glacially-induced biotic radiations
Published 2021-11-01“…The Middle Ordovician icehouse has been suggested to be sparked by extra-terrestrial dust associated with an asteroid break-up. …”
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Coupled exuviae of the Ordovician Ovalocephalus (Pliomeridae, Trilobita) in South China and its behavioral implications
Published 2020-10-01“…Abundant exuviae of Ovalocephalus tetrasulcatus are preserved in the Ordovician strata in central Hubei, China, and some of them are arranged with two or three together end to end or superimposed. …”
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Marine ostracod provinciality in the Late Ordovician of palaeocontinental Laurentia and its environmental and geographical expression.
Published 2012-01-01“…BACKGROUND: We examine the environmental, climatic and geographical controls on tropical ostracod distribution in the marine Ordovician of North America. METHODOLOGY/PRINCIPAL FINDINGS: Analysis of the inter-regional distribution patterns of Ordovician Laurentian ostracods, focussing particularly on the diverse Late Ordovician Sandbian (ca 461 to 456 Ma) faunas, demonstrates strong endemicity at the species-level. …”
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Darriwilian (Middle Ordovician) graptolites from the northern margin of the Qaidam Basin (Qinghai, China)
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173
<i>Platystrophia</i> (Orthida) and new related Ordovician and Early Silurian brachiopod genera
Published 2007-03-01“…More than 150 Ordovician and Early Silurian brachiopod species have been assigned to the genus Platystrophia King, 1850 mainly on the basis of their Spirifer-like shell exteriors. …”
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Lower–Middle Ordovician brachiopods from the Eastern Cordillera of Peru: biostratigraphical and palaeobiogeographical significance
Published 2023-06-01“…LowerâMiddle Ordovician brachiopods are well known from the Central Andean Basin of Argentina and Bolivia, but relatively little data comes from its northern prolongation in the Altiplano and the Eastern Cordillera of Peru. …”
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Cornulitid epibionts on brachiopod shells from the Late Ordovician (middle Ashgill) of East China
Published 2007-06-01Subjects: Get full text
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Upper Cambrian-Ordovician reservoir characteristics in Well Gucheng-4 area, Tarim Basin
Published 2008-04-01“…Collapsed breccias are deposited in platform margins of the Upper Cambrian; Ordovician Penglaiba, Yingshan, and Yijianfang Formations sediments are controlled by eophyton, and lime mud mound facies of shallow glacis of platform frontal margin; Strumae limestone is deposited in the Ordovician Tumuxiuke Formation; and slope continental shelf abyssal basin facies controll the sediments in the Ordovician Queerqueke Formation. …”
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Enodicalix (Diploporita, Aristocystitidae): A new echinoderm genus from the Middle Ordovician of Spain
Published 2020-02-01“…Restudy of an Ordovician diploporite specimen from the Middle Ordovician of central Spain reveals that the species ‘Calix’ inornatus MELÉNDEZ has four ambulacra, each with two equal facets, an oval hydropore and a smooth thecal surface. …”
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Geochemistry and mineralogy of the Upper Ordovician Wufeng formation, Southwestern China: Implications for Paleoclimate construction
Published 2023-11-01“…In this study, mineralogical and geochemical data of the shales from the Upper Ordovician Wufeng Formation in southwestern China has been used to interpret the provenance and conditions of weathering and paleoclimate. …”
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Ordovician conodonts from the Mithaka Formation (Georgina Basin, Australia). Regional and paleobiogeographical implications
Published 2005-01-01Subjects: “…Ordovician…”
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Ordovician–Silurian true polar wander as a mechanism for severe glaciation and mass extinction
Published 2022-12-01“…Sweeping Gondwana across the South Pole, this TPW event induced the Ordovician glaciation and mass extinction.…”
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