End-Permian mass extinction of calcareous algae and microproblematica from Liangfengya, South China

Jia, Enhao; Song, Haijun

doi:10.1016/j.geobios.2018.08.007

Cited by 10 publications

(7 citation statements)

References 42 publications

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“…Extinction horizons for individual species are accurately recorded when their stratigraphic abundance is higher than 15%. Meldahl's (1990) method has been applied frequently to test extinction patterns based on stratigraphic ranges in the marine fossil record (Jin et al, 2000;Song et al, 2009b;Angiolini et al, 2010;Jia and Song, 2018). We employ Meldahl's (1990) method for our four platform and slope sections.…”

Section: Confidence Interval For Estimating the Extinction Positionmentioning

confidence: 99%

Migration controls extinction and survival patterns of foraminifers during the Permian-Triassic crisis in South China

Liu

Song

Bond

et al. 2020

Earth-Science Reviews

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The Permian-Triassic mass extinction, the greatest biotic crisis in Earth history, triggered the complete replacement of ecosystems with the 5-10% surviving species giving rise to the Mesozoic fauna. Despite a long history of systematic studies on Permian-Triassic foraminifera, there have been few investigations into spatial and temporal patterns of survivorship and evolution during this critical interval. We interrogate a highresolution data set comprising newly obtained and previously published foraminiferal data (including 13,422 specimens in 173 species in 62 genera) from seven well-studied Permian-Triassic successions that record a transect of platform to basin facies in South China. Shallow-water settings seen at the Cili and Dajiang sections suffered a single-pulse, sudden extinction with high extinction rates at the end of the Palaeofusulina sinensis Zone; deeper-water and slope environments seen at Liangfengya and Meishan experienced a twopulse extinction in the Clarkina yini and Isarcicella staeschei zones; basinal settings, seen at Shangsi, Gujiao 2 / 91 and Sidazhai, record a single, less devastating extinction pulse in and slightly above the C. yini Zone. In the Late Permian, foraminiferal diversity was greatest on the shallow platforms, where 76.4% of species recorded in our study lived. The two pulses of the Permian-Triassic extinction prompted this foraminiferal diversity hotspot to move to deeper slope settings (comprising 75.6% of contemporary species) and finally basinal settings (comprising 88.8% of species). We propose that foraminifera migrated to deeper water to avoid overheating and toxicity in shallow waters that were driven by the emplacement of the Siberian Traps and coeval volcanic activities around the Paleotethys Ocean. This study provides a methodological framework for investigating survival mechanisms for foraminifers and other taxonomic groups during mass extinction events.

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Section: Confidence Interval For Estimating the Extinction Positionmentioning

confidence: 99%

Migration controls extinction and survival patterns of foraminifers during the Permian-Triassic crisis in South China

Liu

Song

Bond

et al. 2020

Earth-Science Reviews

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“…6 ). Notably, the calcareous algae suddenly disappeared at the beginning of the Clarkina yini zone 42 , during multiple layers of volcanic clay and yellowish micritic limestone (Beds 2–15).…”

Section: Resultsmentioning

confidence: 99%

“…2 ). The topmost two meters of the upper Permian Changxing Formation, Bed 1, consists of medium to thick, bioclastic limestone, and yields abundant fossil fragments, such as foraminifers and fusulinids 41 , calcareous algae 42 , conodonts 38 , and calcareous sponges 40 . The lower part of the Feixianguan Formation is characterized by alternating yellowish shale and gray marlstones (Beds 2–15).…”

Section: Geological and Stratigraphic Settingsmentioning

confidence: 99%

“…The first episode of the mass extinction occurs at the topmost of Bed 8. It is characterized by the disappearance of a fossil assemblage dominated by fusulinids, calcareous algae 42 , and Permian brachiopods 43 . The basal five meters of the overlying earliest Triassic Feixianguan Formation comprise fine-grained lithologies including micrites and marls.…”

Section: Geological and Stratigraphic Settingsmentioning

confidence: 99%

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Different triggers for the two pulses of mass extinction across the Permian and Triassic boundary

Liao

et al. 2021

Sci Rep

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Widespread ocean anoxia has been proposed to cause biotic mass extinction across the Permian–Triassic (P–Tr) boundary. However, its temporal dynamics during this crisis period are unclear. The Liangfengya section in the South China Block contains continuous marine sedimentary and fossil records. Two pulses of biotic extinction and two mass extinction horizons (MEH 1 & 2) near the P–Tr boundary were identified and defined based on lithology and fossils from the section. The data showed that the two pulses of extinction have different environmental triggers. The first pulse occurred during the latest Permian, characterized by disappearance of algae, large foraminifers, and fusulinids. Approaching the MEH 1, multiple layers of volcanic clay and yellowish micritic limestone occurred, suggesting intense volcanic eruptions and terrigenous influx. The second pulse occurred in the earliest Triassic, characterized by opportunist-dominated communities of low diversity and high abundance, and resulted in a structural marine ecosystem change. The oxygen deficiency inferred by pyrite framboid data is associated with biotic declines above the MEH 2, suggesting that the anoxia plays an important role.

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“…2005; Song et al . 2011) and calcareous algae (Jia & Song 2018) suffered a significant drop in diversity during the PTB mass extinction. However, timing and pattern of nautiloid extinction during this event and their subsequent recovery are still not well‐understood, owing to the relative paucity of reported occurrences and detailed taxonomic, biostratigraphic and phylogenetic studies of this fossil group (Kummel 1953).…”

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confidence: 99%

A Changhsingian (late Permian) nautiloid assemblage from Gujiao, South China

Miao

Dai

Korn

et al. 2019

Papers in Palaeontology

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A c. 0.30 m thick cherty limestone bed in the Dalong Formation at Gujiao (Guizhou) has yielded a highly diverse Changhsingian nautiloid assemblage. Its age is late Changhsingian, indicated by the co‐occurring ammonoid Pseudotirolites sp. This assemblage is composed of nine species and five taxa in open nomenclature in nine genera, including one new genus and three new species: Neotainoceras zhaoi sp. nov., Nodopleuroceras gujiaoense sp. nov. and Gujiaonautilus longliensis gen. et sp. nov. Sholakoceras is for the first time recorded in South China. Compared with literature data from 52 sites in various regions worldwide, the material described here presents the most diverse Changhsingian nautiloid assemblage. Among the genera of the Gujiao assemblage, Pleuronautilus, Tainoceras and Liroceras are cosmopolitan, while the others are more endemic or genera known so far only from South China.

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End-Permian mass extinction of calcareous algae and microproblematica from Liangfengya, South China

Cited by 10 publications

References 42 publications

Migration controls extinction and survival patterns of foraminifers during the Permian-Triassic crisis in South China

Migration controls extinction and survival patterns of foraminifers during the Permian-Triassic crisis in South China

Different triggers for the two pulses of mass extinction across the Permian and Triassic boundary

A Changhsingian (late Permian) nautiloid assemblage from Gujiao, South China

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