Mao Luo

Nanjing Institute of Geology and Paleontology

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Zhong‐Qiang Chen

China University of Geosciences

G.R. Shi

University of Wollongong

Jinyuan Huang

China Geological Survey

Wen Wen

Chinese Academy of Sciences

Shixue Hu

Hunan Agricultural University

Michael J. Benton

University of Bristol

Yuheng Fang

China University of Geosciences

Changyong Zhou

Southwest University

Qiyue Zhang

China Agricultural University

Hao Yang

Jilin University

Cooperative Institutions

Chinese Academy of Sciences

China University of Geosciences

Nanjing Institute of Geology and Paleontology

University of Chinese Academy of Sciences

China Geological Survey

China University of Geosciences (Beijing)

Ministry of Natural Resources

State Key Laboratory of Palaeobiology and Stratigraphy

Peking University

Nanjing University

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Complete biotic and sedimentary records of the Permian–Triassic transition from Meishan section, South China: Ecologically assessing mass extinction and its aftermath

Earth-Science Reviews (2014)

Zhong‐Qiang Chen Hao Yang Mao Luo Michael J. Benton Kunio Kaiho

Stratotype

Conodont

Permian–Triassic extinction event

Ooid

10.1016/j.earscirev.2014.10.005

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Citations (160)

Infaunal response during the end-Permian mass extinction

Geological Society of America Bulletin (2020)

Mao Luo Luís A. Buatois G.R. Shi Zhong‐Qiang Chen

Abstract The end-Permian mass extinction (EPME) profoundly shaped shallow marine ecosystems. Although much has been learned about this event based on the body-fossil record, the global infaunal response to the EPME, as represented by ichnofossils, is much less understood. Here we analyze secular changes in ichnodiversity and ichnodisparity from the late Permian to the Middle Triassic based on a global trace-fossil data set. Results show that, in contrast to the body-fossil record, late Permian global ichnodiversity and ichnodisparity maintained their level until the Griesbachian, followed by a sharp loss in the Dienerian. Notably, the Griesbachian shows an unusual dominance of shallower tiers. The discrepancy between the body- and trace-fossil record is interpreted to be the result of the resurgence of widespread microbial matgrounds in the Griesbachian that aided the preservation of surface, semi-infaunal, and shallow-tier ichnofossils. Our study shows that the EPME strongly affected the sediment mixed layer, allowing the preservation of shallower tier trace fossils. The disappearance of the mixed layer in the earliest Triassic may have enhanced pyrite burial in sediments and inhibited its further re-oxidation, therefore impacting sea water sulfate concentrations.

Permian–Triassic extinction event

Early Triassic

Dominance (genetics)

Extinction (optical mineralogy)

10.1130/b35524.1

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Citations (19)

Stacked Parahaentzschelinia ichnofabrics from the Lower Permian of the southern Sydney Basin, southeastern Australia: Palaeoecologic and palaeoenvironmental significance

Palaeogeography Palaeoclimatology Palaeoecology (2019)

Mao Luo G.R. Shi Sangmin Lee

Burrow

Sedimentation