The use of Ostracoda to reconstruct the oxygen levels of Late Palaeozoic oceans

Lethiers, Francis; Whatley, Robin C.

doi:10.1016/0377-8398(94)90011-6

Cited by 67 publications

(27 citation statements)

References 28 publications

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“…Lethiers et al [24] established a model to show the relationship between the proportion of the filter-feeders and the oxygen level of the water, with a greater percentage of the filter-feeders in the lower oxygen level. The ostracod assemblage at the Laolongdong section is very simple with a great proportion (up to 60%) of filterfeeders, inferring a dysoxic environmental condition [20].…”

Section: Comparison Of the Ostracod Faunas In South Chinamentioning

confidence: 99%

Ostracod fauna across the Permian-Triassic boundary at Chongyang, Hubei Province, and its implication for the process of the mass extinction

Líu

Wang

Yuan³

et al. 2010

Sci. China Earth Sci.

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Thirty species of 10 ostracod genera were identified from 440 fossil specimens isolated through the hot acetolysis of the rock samples collected across the Permian-Triassic boundary at Chongyang section. Twenty species of 6 genera are found to occur in the limestone of Changxing Formation, and 11 species of 7 genera above the main faunal mass extinction horizon. The ostracod assemblages identified at the Chongyang section are obviously different from those previously reported in the contemporaneous microbialites in Guangxi and Chongqing regions, not only in the ostracod components but also in the abundance of filter-feeding ostracods relative to the deposit-feeding ostracods, an indicator of the oxygen level of the seawater. This spatial difference in ostracod assemblages might reflect the diversity of oceanic environmental conditions after the end-Permian mass extinction. Ostracods disappear at 200 cm below and near the main mass extinction horizon, and on the top of the microbialites, respectively, showing an episodic and gradual collapse process at the Chongyang section. The carbon isotope composition is found to appear at 200 cm below the main mass extinction horizon, indicating the initial deterioration of oceanic environment. Fluctuation of the carbon isotope composition is obviously related with the episodic evolution of ostracod species, but not with the abundance of ostracods. ostracod, microbialite, Permian-Triassic, mass extinction, Chongyang Citation:Liu H, Wang Y B, Yuan A H, et al. Ostracod fauna across the Permian-Triassic boundary at Chongyang, Hubei Province, and its implication for the process of the mass extinction.

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Section: Comparison Of the Ostracod Faunas In South Chinamentioning

confidence: 99%

Ostracod fauna across the Permian-Triassic boundary at Chongyang, Hubei Province, and its implication for the process of the mass extinction

Líu

Wang

Yuan³

et al. 2010

Sci. China Earth Sci.

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“…Depending on their particular nutrition strategy, these forms create an enhanced circulation over their ventral respiratory surface. This, in turn, increases access to available oxygen and improves the survival potential, even under severe oxygen-depleted conditions (Whatley 1992;Lethiers and Whatley 1994;CrasquinSoleau and Kershaw 2005). Accordingly, the occurrence of ostracods within the laminite lithofacies would not be a priori ecologically inconsistent with the foraminiferal record.…”

Section: Benthic Fauna and Bottom-water Oxygenationmentioning

confidence: 99%

Facies, depositional environment, and palaeoecology of the Middle Triassic Cassina beds (Meride Limestone, Monte San Giorgio, Switzerland)

Stockar

2010

Swiss J Geosci

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“…The trace fossils from the Gelaohe Formation also suggest the shallow-marine low-energy environment (Wang and Wang, 1996;Zhang et al, 2011b). As we know, most of the species of Bairdiocypridoidea are considered to be deposit feeders for their well-developed muscle scars (Adamczak, 1969;Lethiers and Whatley, 1994). In summary, we suggest that Wangshangkia n. gen. is essentially a benthic crawler and deposit feeder living in the shallow-marine, low-energy waters with abundant food supply.…”

Section: Discussionmentioning

confidence: 99%

<i>Wangshangkia</i>, a new Devonian ostracod genus from Dushan of Guizhou, South China

Song

Gong

2018

J. Micropalaeontol.

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Abstract. Wangshangkia, a new genus of Ostracoda, from the Late Devonian in Dushan of Guizhou, South China, is described. This genus belongs to the family Bairdiocyprididae Shaver, 1961 and includes two new species, i.e. Wangshangkia dushaniensis and W . bailouiensis. The new genus is characterized by a wide ventral carina with radial striae. It is reported from the Famennian of South China and disappeared just below the Devonian-Carboniferous boundary. Wangshangkia is essentially a benthic crawler and is restricted to the shallow-marine depositional environment with a low hydrodynamic condition.

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The use of Ostracoda to reconstruct the oxygen levels of Late Palaeozoic oceans

Cited by 67 publications

References 28 publications

Ostracod fauna across the Permian-Triassic boundary at Chongyang, Hubei Province, and its implication for the process of the mass extinction

Ostracod fauna across the Permian-Triassic boundary at Chongyang, Hubei Province, and its implication for the process of the mass extinction

Facies, depositional environment, and palaeoecology of the Middle Triassic Cassina beds (Meride Limestone, Monte San Giorgio, Switzerland)

<i>Wangshangkia</i>, a new Devonian ostracod genus from Dushan of Guizhou, South China

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The use of Ostracoda to reconstruct the oxygen levels of Late Palaeozoic oceans

Cited by 67 publications

References 28 publications

Ostracod fauna across the Permian-Triassic boundary at Chongyang, Hubei Province, and its implication for the process of the mass extinction

Ostracod fauna across the Permian-Triassic boundary at Chongyang, Hubei Province, and its implication for the process of the mass extinction

Facies, depositional environment, and palaeoecology of the Middle Triassic Cassina beds (Meride Limestone, Monte San Giorgio, Switzerland)

&lt;i&gt;Wangshangkia&lt;/i&gt;, a new Devonian ostracod genus from Dushan of Guizhou, South China

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<i>Wangshangkia</i>, a new Devonian ostracod genus from Dushan of Guizhou, South China