Cambrian to basal Ordovician lithostratigraphy in southern Scandinavia
نویسندگان
چکیده
منابع مشابه
The Ordovician Radiation: A Follow-up to the Cambrian Explosion?
There was a major diversification known as the Ordovician Radiation, in the period immediately following the Cambrian. This event is unique in taxonomic, ecologic and biogeographic aspects.While all of the phyla but one were established during the Cambrian explosion, taxonomic increases during the Ordovician were manifest at lower taxonomic levels although ordinal level diversity doubled. Marin...
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Calcareous skeletons evolved as part of the greater Ediacaran/Cambrian diversification of marine animals; however, skeletons did not become permanent, globally important sources of carbonate sediment until the Ordovician radiation. Representative carbonate facies in a Series 3 Cambrian to Tremadocian succession from western Newfoundland and Ordovician successions from the Ibex area, Utah, show ...
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OBJECTIVE To describe innovations in neurocritical care originating from university hospitals in southern Scandinavia over a period of 50 years. DISCUSSION Several techniques and strategies that are now included in clinical routine were initially developed in southern Scandinavia: continuous recording of intracranial pressure, monitoring of cerebral blood flow, analyses of cerebral energy met...
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Late Cambrian to early Ordovician trilobites, the family Olenidae, were tolerant of oxygen-poor, sulfur-rich sea floor conditions, and a case is made that they were chemoautotrophic symbionts. Olenids were uniquely adapted to this habitat in the Lower Paleozoic, which was widespread in the Late Cambrian over Scandinavia. This life habit explains distinctive aspects of olenid morphology: wide th...
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to assess biogeographic affinity of the late cambrian (furongian) and the early ordovician (late tremadocian) faunas of eastern alborz, a multivariate cluster analysis using the pair-group raup-crick similarity index has been applied. the late cambrian fauna of alborz shows clear gondwanan signatures with the closest affinities to the contemporaneous faunas of temperate latitude peri-gondwana (...
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ژورنال
عنوان ژورنال: Bulletin of the Geological Society of Denmark
سال: 2006
ISSN: 2245-7070
DOI: 10.37570/bgsd-2006-53-04