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A proposed global boundary stratotype for the base of the Upper Series of the Ordovician System: The Fagelsang section, Scania, southern Sweden
A world-wide search for stratigraphic sections exposing the base of the Nemagraptus gracilis Biozone, the level selected to define the base of the global Upper Ordovician Series, resulted in theExpand
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Ordovician chitinozoan zones from Baltoscandia
On the basis of reports published over the last 60 years, and unpublished data, a chitinozoan zonation is proposed for the Ordovician sequence of Scandinavia, the East Baltic, northeast Poland andExpand
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Early Silurian glaciations in Brazil
Abstract The opening of the Brazilian Paleozoic basins during the Late Ordovician was followed by a tectonic stabilization in the Silurian. At the time of the Early Silurian glaciations, depositionExpand
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A revised chitinozoan classification
The successful definition of chitinozoan genera depends primarily on the precision of the criteria used. A standardized morphological terminology based upon details from scanning electron microscopeExpand
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Early Silurian glaciation along the western margin of Gondwana (Peru, Bolivia and northern Argentina): Palaeogeographic and geodynamic setting
The record of the Ordovician–Silurian transition within the southern Peru–Bolivia Palaeozoic basin (extending across Peru, Bolivia and northern Argentina) is characterized by a diamictite-bearingExpand
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Precise chitinozoan dating of Ordovician impact events in Baltoscandia
The chitinozoan biostratigraphy of four Ordovician impact craters has been investigated. Three of these (Tvären, Kärdla and Lockne) contain complete sequences of early Caradoc age, while the GranbyExpand
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Lower Silurian (Llandovery-Middle Wenlock) Chitinozoa and biostratigraphy of the mainland of Sweden
Abstract Lower Silurian (Llandovery-Middle Wenlock) chitinozoans from the mainland of Sweden have been investigated from the provinces of Skane, Vastergotland, Ostergotland and Dalarna. AltogetherExpand
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Palynology and sequence stratigraphy of three Devonian rock units in the Apucarana Sub-basin (Paraná Basin, south Brazil): Additional data and correlation
The classical Devonian rock units in the Apucarana Sub-basin (Parana Basin), i.e. Ponta Grossa shales, Tibagi sandstones and Sao Domingos shales were defined by Oliveira (1912) and Bodziak and MaackExpand
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Palynostratigraphy of the Chapada Group and its significance in the Devonian stratigraphy of the Paraná Basin, south Brazil
The Alto Garcas Sub-basin in the northern part of the Parana Basin evolved differently from the Apucarana Sub-basin in the south. The marine environment was shallower in the Alto Garcas Sub-basin,Expand
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