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The late Frasnian (Upper Devonian) Kellwasser Crisis
2005Detailed investigations of sequences containing the Kellwasser Bio-event near the Frasnian-Famennian boundary demonstrate a stepwise character of influences on different groups of organisms over a time span of more than 1 my. Therefore the term Kellwasser Crisis (KW Crisis) is introduced. Extraordinary episodes of the KW Crisis, like e.g.
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Paleolatitudes in the Devonian of Brazil and the Frasnian-Famennian mass extinction
Palaeogeography, Palaeoclimatology, Palaeoecology, 1977Abstract Differences in faunal composition of contemporary Devonian marine communities in Brazilian sedimentary basins suggest variation because of climatic gradients. Temperatures may have ranged from subarctic conditions in the Parana Basin, a type of Devonian Hudson's Bay, to temperate in the Amazon and adjoining basins, analogous to a modern ...
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Maleimides across the Frasnian/Famennian boundary
Analysis of bound maleimides across the Late Devonian Frasnian/Famennian boundary from a core in the Illinois Basin, North America.openaire +1 more source
Frasnian–Famennian biotic crisis: undervalued tectonic control?
Palaeogeography, Palaeoclimatology, Palaeoecology, 1998The prime cause of the Late Devonian Kellwasser crisis, culminating in a mass extinction event near the Frasnian–Famennian (F–F) boundary, remains conjectural. Nevertheless, rapid sea-level fluctuations of uncertain origin during tectono-eustatic highstand, paired with repeated oceanic anoxia and climatic changes, are usually thought at present to be ...
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Reef development at the Frasnian/Famennian mass extinction boundary
Palaeogeography, Palaeoclimatology, Palaeoecology, 2002Paul Copper
exaly
First acanthodian from the Upper Devonian (Frasnian) Gogo Formation, Western Australia
Historical Biology, 2012John Long +2 more
exaly