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Primary terms
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biogeography (2)
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Canada
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Eastern Canada
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upper Visean (2)
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Paleotethyan faunal/floral evidence in the Mississippian Maritimes Basin of Canada: An overview
Reappraisal of Arundian–Asbian successions of the Great Scar Limestone Group across northern England
The Serpukhovian in Britain: use of foraminiferal assemblages for dating and correlating
Foraminifers in upper Viséan–lower Serpukhovian limestones (Mississippian) from South Wales: regional correlation and implications for British foraminiferal zonal schemes
The lower–middle Viséan boundary interval in the Palaeotethys: refinements for the foraminiferal zonal schemes
STATES OF PRESERVATION AND ROLE OF DASYCLADAL ALGAE IN MISSISSIPPIAN CARBONATE MOUNDS
FORAMINIFERAL BIOSTRATIGRAPHY ACROSS THE VISEAN/SERPUKHOVIAN BOUNDARY IN THE VEGAS DE SOTRES SECTION (CANTABRIAN MOUNTAINS, SPAIN)
MISSISSIPPIAN BISERIAMMINACEAE AND THEIR EVOLUTIONARY DEVELOPMENT
Potential Foraminiferal Markers for the Visean–Serpukhovian and Serpukhovian–Bashkirian Boundaries—a Case-Study from Central Morocco
Carboniferous stratigraphy and context of the Seal Sands No. 1 Borehole, Teesmouth, NE England: the deepest onshore borehole in Great Britain
Carbonate facies and biostromal distribution in a tectonically controlled platform in northwest Ireland during the late Viséan (Mississippian)
Late Asbian to Brigantian (Mississippian) foraminifera from southeast Ireland: comparison with northern England assemblages
Abstract Sierra de la Estrella outcrops belong to the Sierra del Castillo Unit, which is defined in the Guadiato Area, SW Spain, where sedimentation occurred during the Late Viséan. The Guadiato Area is located on the boundary between the Ossa-Morena and Central Iberian structural zones, in the southwestern Iberian Peninsula, where Lower Carboniferous outcrops are common. The stratigraphic succession from Sierra de la Estrella is dated precisely by means of foraminifers (Zone 15). The studied rocks are interpreted as having developed on a storm-dominated ramp. Microbial buildups occur interbedded between tempestites and marls. Two main types of mud mounds have been distinguished: large tabular and smaller dome-shaped mud mounds, which were developed in a middle-ramp setting.
Foraminiferal Fauna and Zonation From the Lower Carboniferous of the Guadiato Area (Sw Spain): Comparison With European and North African Foraminiferal Zonal Schemes and their Paleobiogeographical Implications
Abstract Lower Carboniferous (Upper Viséan and Pendleian) rocks from the Guadiato Area, in the southwestern part of Spain, comprise mixed carbonate-siliciclastic platform facies, with siliciclastics predominant. The calcareous intervals contain a highly diversified foraminiferal fauna, composed mainly of endothyroids, although some primitive fusulinids are also present. Fourteen families, 9 subfamilies, 67 genera, and 134 species or species groups of foraminifera have been identified. These allow the identification of zones 14 to 18 of Mamet’s classification. Within this zonal framework the appearance, disappearance, and maximum abundance of selected taxa in the Guadiato Area are described and discussed. The first appearance of foraminiferal species and genera in the Guadiato Area is compared to that in other European (Montagne Noire, northern France and Belgium; Britain; and Ireland) and North African (Algéria and Morocco) basins. It shows that some foraminifera occurred earlier in Spain whereas other taxa occurred later than in these regions. These early or late appearances of taxa are grouped in two trends, which are probably related to tectonic movements coeval with sedimentation in the Guadiato Area. Moreover, cluster analysis comparing the foraminifera of the twelve neighboring Carboniferous basins or regions establishes the paleobiogeographical relationship between the Guadiato Area and these other regions.
Upper Vis ÉAn Saccamminopsis-Sponge Microbial Mud Mounds, Sierra De La Estrella, Southwestern Spain
Abstract Dome-shaped mud mounds ranging in size from 2 m to 25 m thick and from 2 m to 100 m in diameter are present in the Upper Viséan of Sierra de la Estrella, Guadiato Valley, in the Sierra Morena region of SW Iberian Peninsula. The mounds are composed of up to 70% peloidal matrix and contain a varied but sparse assemblage including bryozoans, crinoids, brachiopods, calcareous algae, foraminifers, and gastropods. A three-stage biotic succession is recognizable in the mounds. The first stage consists of crinoid-sponge spicule packstones. The second stage is represented by a low-diversity, autochthonous assemblage of scattered sponges and up to 40-60% by volume of the microproblematical taxon Saccamminopsis fusulinaeformis (McCoy). The third stage consists of peloidal framework and cementstone with abundant primary growth cavities. These rocks are interpreted to be microbial boundstone-cementstone. The three stages of mound growth developed below storm wave base, and the probable coeval, level-bottom beds consisting of marls are interpreted to have been deposited in a dysphotic environment.