Modelling of the Neves Corvo Area
Carlos InvernoCarlos RosaJoão Xavier MatosJ. CarvalhoJ. M. Castello-BrancoMaria João BatistaI. GranadoJ. T. OliveiraVítor AraújoZélia PereiraPatrícia RepresasRita SoláPedro Sousa
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Because of the rapid southward movement of Gondwana towards the end of the Visean and especially during the Namurian, and the development of a substantial icecap which influenced world climates and depositional pattern, the Carboniferous is one of the most difficult parts of the Phanerozoic record in which to establish a timescale of global significance. Up to now, only one GSSP that is the middle Carboniferous boundary was established in the Carboniferous. It becomes acceptable to divide the Carboniferous into two parts, a Lower Carboniferous or Mississippian and an Upper Carboniferous or Pennsylvanian. The former includes Tournaisian, Visean and Serpukhovian, and the latter includes Bashkirian, Moscovian, Kasimovian, and Gzhelian. Two complementary sets of series, which are from West Europe and North America, are preferred by SCCS for the interval between the base of the Namurian/Serpukhovian to the end of the Carboniferous because of extreme provincialism of biota during this interval. A revised Chinese Carboniferous chronostratigraphic chart is composed of two subsystems, four series, and eight stages,namely: the Fengningian and Hutianian subsystems; the Aikuanian, Tatangian, Weiningian, and Mapingian series; and the Tangbagouan, Jiusian,Shangsian,Dewuan,Luouan,Huashibanian, Dalan, and Xiaodushanian stages.
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Tournaisian
Chronostratigraphy
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Tournaisian
Viséan
Devonian
Sequence (biology)
Late Devonian extinction
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Describes Radiatospongia carbonaria n.g. n.sp. and Microspongia castletonense n.sp. from middle Visean reef limestones. These are the first complete sponges, apart from Erythrospongia, to be found in lower Carboniferous rocks of England.
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Abstract Tetrapod (amphibian and amniote) fossils of Carboniferous age are known almost exclusively from the southern part of a palaeoequatorial Euramerican province. The stratigraphic distribution of Carboniferous tetrapod fossils is used to identify five land-vertebrate faunachrons: (1) Hortonbluffian (Givetian–early Visean), the time between the first appearance datum (FAD) of tetrapods to the beginning of the Doran; (2) Doran (late Visean–early Bashkirian), the time between the FAD of the baphetid Loxomma and the beginning of the Nyranyan; (3) Nyranyan (late Bashkirian–Moscovian), the time between the FAD of the eureptile Hylonomus and the beginning of the Cobrean; (4) Cobrean (Kasimovian–late Gzhelian), the time between the FAD of the eupelycosaur Ianthasaurus and the beginning of the Coyotean; and (5) Coyotean (late Gzhelian–early Permian), the time between the FAD of the eupelycosaur Sphenacodon and the beginning of the Seymouran. This biochronology provides insight into some important evolutionary events in Carboniferous tetrapod evolution.
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Amniote
Tournaisian
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Flysch
Devonian
Late Devonian extinction
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Abstract The Carboniferous Foraminifera are composed of representatives of three classes: Fusulinata, Miliolata and Nodosariata. Despite ample literature on Paleozoic Allogromiata and Textulariata, the real presence of these classes remains questionable during the Carboniferous and they are thus excluded herein. The main biostratigraphical markers belong to the superfamilies Archaediscoidea, Lasiodiscoidea and Bradyinoidea, even if many genera among the archaediscoids still have a controversial nomenclature, as well as do some lasiodiscids and bradyinoids. Secondary biostratigraphical markers belong to Lituotubelloidea (= ‘Tournayelloidea’ of the authors), Endothyroidea and Loeblichioidea (these latter giving rise to the primitive Fusulinida). The Miliolata appear at the Visean/Serpukhovian boundary interval. The typical Carboniferous miliolates are primitive nubeculariins and cornuspirinins. Tubiphytids might be miliolate and cyanobacterium consortia, derived from the nubeculariin Palaeonubecularia . The most primitive nodosariates (syzraniids) appeared in the Moscovian; and gave rise, in the latest Carboniferous, to Protonodosaria , Nodosinelloides and possibly Polarisella , Paravervilleina and the oldest Geinitzinoidea. Palaeobiological data are mainly provided by the genera Bradyina , Tetrataxis and Climacammina . Palaeobiogeographical distributions of Pojarkovella , Janischewskina, Eosigmoilina , Brenckleina , Spireitlina , Hemigordius and Syzrania testify to the successive foraminiferal migrations between the Palaeotethys, Ural and Panthalassan oceans. Two taxa are created: Eoparastaffellidae and Banffellinae.
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A description is given of the Carboniferous ostracods from the borings in North-western Poland. Thirty-four species, including fifteen species and two subspecies considered as new ones, are described and their stratigraphic importance discussed. In the sediments under study, three horizons have been distinguished differing in their ostracods. The first of them may correspond to the Tournaisian, the second to the Visean, while the third's age has been approximately determined as the Namurian.
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large chonetoid brachiopod Delepinea has been found in lower Carboniferous deposits of the Bonaparte Gulf basin, northwest It is represented by a new species D. uttingi which appears to have its closest affinities with European Visean species. The new species seems to be dimorphic. Delepinea is now known from the lower Carboniferous of Europe, North Africa, Asia, and from east and west Australia.
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