Radiolarians in the Sedimentary Record

Wever, Patrick De; Dumitrică, Paulian; Caulet, J.; Nigrini, Catherine A; Caridroit, Martial

doi:10.1201/9781482283181

Cited by 220 publications

(258 citation statements)

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“…As this observation has also been made for marine benthic metazoans (Kiessling et al 2007) there may be an environmental underpinning. Environmental stress has been evoked to explain the commonness of twisted spines in Triassic radiolarians (De Wever et al 2001. However, except for the Early Triassic (Galfetti et al 2007) and the Carnian (Simms & Ruffell 1989) there is little direct evidence for unusual environmental and climate change during the Triassic (Preto et al 2010).…”

Section: Discussionmentioning

confidence: 99%

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Trajectories of Late Permian - Jurassic radiolarian extinction rates: no evidence for an end-Triassic mass extinction

Kiessling

Danelian²

2011

Fossil Record

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The hypothesis that ocean acidification was a proximate trigger of the marine end‐Triassic mass extinction rests on the assumption that taxa that strongly invest in the secretion of calcium‐carbonate skeletons were significantly more affected by the crisis than other taxa. An argument against this hypothesis is the great extinction toll of radiolarians that has been reported from work on local sections. Radiolarians have siliceous tests and thus should be less affected by ocean acidification. We compiled taxonomically vetted occurrences of late Permian and Mesozoic radiolarians and analyzed extinction dynamics of radiolarian genera. Although extinction rates were high at the end of the Triassic, there is no evidence for a mass extinction in radiolarians but rather significantly higher background extinction in the Triassic than in the Jurassic. Although the causes for this decline in background extinction levels remain unclear, the lack of a major evolutionary response to the end‐Triassic event, gives support for the hypothesis that ocean acidification was involved in the dramatic extinctions of many calcifying taxa. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Section: Discussionmentioning

confidence: 99%

“…Complete faunal lists from 200 publications have been entered in the Paleobiology Database (http://paleodb.org). The dataset was taxonomically vetted based on De Wever et al (2001), O'Dogherty et al (2009aO'Dogherty et al ( , 2009b, and personal expertise. Data were downloaded on August 3, 2010.…”

Section: Introductionmentioning

confidence: 99%

Trajectories of Late Permian - Jurassic radiolarian extinction rates: no evidence for an end-Triassic mass extinction

Kiessling

Danelian²

2011

Fossil Record

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“…The supraspecies taxonomy used in this work follows De Wever et al (2001) and O'Dogherty et al (2009a, b). The radiolarian biostratigraphy is mainly based on the Middle Jurassic-Early Cretaceous radiolarian zonation of the InterRad Jurassic-Cretaceous Working Group and the middle Cretaceous zonation of O'Dogherty (1994).…”

Section: Radiolarian Biochronologymentioning

confidence: 99%

Aalenian to Cenomanian Radiolaria of the Bermeja Complex (Puerto Rico) and Pacific origin of radiolarites on the Caribbean Plate

et al. 2011

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“…In fact, the formation of radiolarian-rich deposits is not necessarily bathymetry-related, but also might occur in relatively shallow water and proximal conditions depending on the preservation rate of radiolarians relative to calcareous biota, preferentially in cold seas or in upwelling zones: in general, outbursts of radiolarians are related to high productivity, i.e. the availability of nutrients, and the availability of dissolved silica (De Wever et al, 2001). Among others, nutrients and silica input might derive from the surrounding continents.…”

Section: General Evaluationmentioning

confidence: 99%

Mississippian (Early Carboniferous) sequence stratigraphy of the Rhenish Kulm Basin, Germany

Herbig¹

2016

Geol. Belg.

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ABSTRACT. The Rhenish Kulm Basin is a deeper-water foreland basin developing in front of the Variscan Orogen in Germany. Three major facies interfinger and might overwhelm the adjacent one in time. These are (1) internal siliciclastic flysch facies, (2) central starved basin facies, and (3) calciturbidite facies. Calciturbidites are derived from the Northwest European shallow-water carbonate platform or not preserved intrabasinal sources. Besides, a deep intrabasinal swell facies is characterized by condensed successions. Diagnostic rock types within each facies enable the recognition of systems tracts of third-order depositional sequences. The interpretation of faunal developments and bioevents support these attributions. Hence, for the first time a sequence stratigraphic subdivision of the Rhenish Kulm Basin into 13 sequences is achieved, ranging from the latest Devonian to the early Namurian. The lower nine sequences are correlated with the Dinantian sequences earlier established on the Belgium shallow-water platform. Two Brigantian sequences 10 and 11 are identified and, despite the prograding Variscan Orogen, the two lower Namurian (Pendleian, Arnsbergian) sequences 12 and 13. The results demonstrate the successful application of sequence stratigraphy in a deeper-water basin, show that sea-level changes overrule the general, more gradual tectonic development of the basin, and prove the Palaeotethyan, if not global isochroneity of Mississippian sequences.

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Radiolarians in the Sedimentary Record

Cited by 220 publications

References 0 publications

Trajectories of Late Permian - Jurassic radiolarian extinction rates: no evidence for an end-Triassic mass extinction

Trajectories of Late Permian - Jurassic radiolarian extinction rates: no evidence for an end-Triassic mass extinction

Aalenian to Cenomanian Radiolaria of the Bermeja Complex (Puerto Rico) and Pacific origin of radiolarites on the Caribbean Plate

Mississippian (Early Carboniferous) sequence stratigraphy of the Rhenish Kulm Basin, Germany

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