Post-extinction diversification patterns of brachiopods in the early–middle Llandovery, Silurian

Huang, Bing; Jin, Jisuo; Jiayu, Rong

doi:10.1016/j.palaeo.2017.12.025

Cited by 30 publications

(23 citation statements)

References 44 publications

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“…3d). Specifically, Silurian brachiopod biodiversity shows a protracted post-extinction recovery, lasting until at least the Telychian 11,12,53 (starting~436 Ma), and high rates of planktonic (graptoloid) turnover persisted throughout the Silurian 9,10 (Fig. 3b).…”

Section: Discussionmentioning

confidence: 99%

“…The second, around the Hirnantian-Rhuddanian (Ordovician-Silurian) boundary, impacted animals throughout the water column 2 and has been linked to a sulfide-dominated Hirnantian ocean anoxic event [6][7][8] . The Rhuddanian Age was an interval of sustained low marine diversity 3 , with the fossil plankton (graptoloid) record indicating a dramatic increase in average extinction rates from the Late Ordovician 9,10 and benthic brachiopods exhibiting protracted post-extinction recovery 11,12 .…”

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confidence: 99%

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Persistent global marine euxinia in the early Silurian

et al. 2020

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The second pulse of the Late Ordovician mass extinction occurred around the Hirnantian-Rhuddanian boundary (~444 Ma) and has been correlated with expanded marine anoxia lasting into the earliest Silurian. Characterization of the Hirnantian ocean anoxic event has focused on the onset of anoxia, with global reconstructions based on carbonate δ 238 U modeling. However, there have been limited attempts to quantify uncertainty in metal isotope mass balance approaches. Here, we probabilistically evaluate coupled metal isotopes and sedimentary archives to increase constraint. We present iron speciation, metal concentration, δ 98 Mo and δ 238 U measurements of Rhuddanian black shales from the Murzuq Basin, Libya. We evaluate these data (and published carbonate δ 238 U data) with a coupled stochastic mass balance model. Combined statistical analysis of metal isotopes and sedimentary sinks provides uncertainty-bounded constraints on the intensity of Hirnantian-Rhuddanian euxinia. This work extends the duration of anoxia to >3 Myrsnotably longer than well-studied Mesozoic ocean anoxic events.

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Persistent global marine euxinia in the early Silurian

et al. 2020

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“…for details of the older Cathaysiorthis fauna) which reflects the trend within the global dataset (see Huang et al . ).…”

Section: The Evolution Of the Cathaysiorthis Faunamentioning

confidence: 97%

“…The data have been updated twice (Huang et al . , ) and geographical information was available for 83 genera. In the updated dataset, Lissatrpya , Leptellina ( Merciella ), Lingulasma and Petrocrania , occurring in the new Cathaysiorthis fauna, were not recorded previously.…”

Section: The Evolution Of the Cathaysiorthis Faunamentioning

confidence: 99%

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A new Cathaysiorthis (Brachiopoda) fauna from the lower Llandovery of eastern Qinling, China

Huang

Harper

Zhou

et al. 2019

Papers in Palaeontology

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Following the end Ordovician mass extinction, brachiopod faunas were commonly of low diversity, generally rare in abundance, and restricted to shallow‐water environments in many places. The Cathaysiorthis fauna, first described from South East China, is the most diverse brachiopod fauna in the world succeeding the Hirnantia fauna, and has modified our previous views on the recovery of shelly benthos after the extinctions. Here, we report a newly‐discovered fauna with abundant Cathaysiorthis from the lower Zhangwan Formation (lower–middle Rhuddanian, lower Llandovery) in Qinling, Xichuan County, Henan Province, China. This fauna is slightly younger than that previously documented from South East China, and the evolution of Cathaysiorthis fauna, in terms of its composition, is discussed. The Qinling Cathaysiorthis fauna has a narrower bathymetric range (Benthic Assemblage Zone 3) than that of the fauna from South East China (BA 2–5) and occurred on the Qinling–Dabie Microplate located on the northwest margin of the South China Plate. The migration of the Cathaysiorthis fauna from the South China plate to Qinling–Dabie was achieved by larvae that used ambient ocean currents and possibly drifted from the Jiangnan Region of South East China to Qinling. The Qinling Cathaysiorthis fauna includes 13 species belonging to 12 genera. Two new species, Cathaysiorthis xichuanensis sp. nov. and Aegiria apta sp. nov. are established and described herein, and ten other species are discussed.

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Paleoecology and paleobiogeography

2024

Paleontological Data Analysis

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Post-extinction diversification patterns of brachiopods in the early–middle Llandovery, Silurian

Cited by 30 publications

References 44 publications

Persistent global marine euxinia in the early Silurian

Persistent global marine euxinia in the early Silurian

A new Cathaysiorthis (Brachiopoda) fauna from the lower Llandovery of eastern Qinling, China

Paleoecology and paleobiogeography

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