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A new genus of Rhynchonellid Brachiopod from the Lower Triassic of South China and Implications for timing the recovery of Brachiopoda after the end-Permian mass extinction

Chen, Z.Q., Shi, Guang Rong and Kaiho, K. 2002, A new genus of Rhynchonellid Brachiopod from the Lower Triassic of South China and Implications for timing the recovery of Brachiopoda after the end-Permian mass extinction, Palaeontology, vol. 45, no. 1, pp. 149-164, doi: 10.1111/1475-4983.00231.

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Title A new genus of Rhynchonellid Brachiopod from the Lower Triassic of South China and Implications for timing the recovery of Brachiopoda after the end-Permian mass extinction
Author(s) Chen, Z.Q.
Shi, Guang Rong
Kaiho, K.
Journal name Palaeontology
Volume number 45
Issue number 1
Start page 149
End page 164
Publisher Blackwell Publishing Ltd
Place of publication London, England
Publication date 2002
ISSN 0031-0239
1475-4983
Keyword(s) Meishanorhynchia
Lower Triassic
end-Permian extinction
biotic recovery
South China
Summary A new genus, Meishanorhynchia, is proposed based on new material from the Lower Triassic of the Meishan section, South China. It is of a late Griesbachian age based on both associated biozones (ammonoids and
bivalves) and radiometric dates of the intercalated volcanic ash beds. Comparison with both Palaeozoic and Mesozoic-Cenozoic-related genera suggests that it may represent the first radiation of progenitor brachiopods in the aftermath of the end-Permian extinction. The lowest brachiopod horizon that contains the genus is estimated to be about 250.1±0.3 Ma. This implies that the initial stage of recovery of Brachiopoda in the Early Triassic was probably about 1.3±0.3 myr after the major pulse of the end-Permian mass extinction (dated as 251.4±0.3 Ma). This is in agreement with Hallam's expectancy that biotic recovery typically begins within one million years or so of major mass extinctions, in contrast to current views on the end-Permian extinction event which propose that the recovery of most if not all biotic groups in the Early Triassic was severely delayed and only began about five million years after the end-Permian extinction.
Language eng
DOI 10.1111/1475-4983.00231
Field of Research 040311 Stratigraphy (incl Biostratigraphy and Sequence Stratigraphy)
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2002, The Palaeontological Association
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30001474

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.