An ethological interpretation of zoophycos based on permian records from South China and Southeastern Australia

Zhang, Li-Jun, Shi, G R and Gong, Yi-Ming 2015, An ethological interpretation of zoophycos based on permian records from South China and Southeastern Australia, Palaios, vol. 30, no. 5, pp. 408-423, doi: 10.2110/palo.2013.060.

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Title An ethological interpretation of zoophycos based on permian records from South China and Southeastern Australia
Author(s) Zhang, Li-Jun
Shi, G RORCID iD for Shi, G R orcid.org/0000-0002-5126-4036
Gong, Yi-Ming
Journal name Palaios
Volume number 30
Issue number 5
Start page 408
End page 423
Total pages 16
Publisher SEPM Society for Sedimentary Geology
Place of publication Tulsa, Okla.
Publication date 2015-05
ISSN 0883-1351
Summary Abundant, well-preserved Zoophycos is common in the lower and middle Permian paleotropical neritic limestone of South China and in the middle Permian glaciomarine lithic wackestone of southeastern Australia. Zoophycos from both regions is composed of a marginal tube and a tongue-like spreiten complex, the latter itself consisting of primary lamellae in planar view and backfill structures (dark and light menisci) in cross-sectional view. The Zoophycos tracemaker is interpreted to have periodically collected and fed on the surrounding nutrient-enriched sediments within a shallow depth of the seafloor. The dark menisci may correspond to the burrowing phase, whereas the light menisci may be related to a multiple-behavior phase, including dwelling, feeding, farming, resting, and excreting. Symbiotic microorganisms (e.g., sulphate-reducing bacteria) may have been closely involved with the Zoophycos tracemaker in producing the complex structures of the spreiten, based on the abundant pyrite framboids that were found in the Zoophycos spreiten. We suggest that Zoophycos is not simply a biogenic sedimentary structure formed by the motion of the tracemaker; rather it represents a set of complex and elaborate biogenic structures formed by a succession of life behaviors of the tracemaker along with its symbiotic microorganisms. The complete formative process of Zoophycos is reconstructed and linked to its morphology, based on this interpretation.
Language eng
DOI 10.2110/palo.2013.060
Field of Research 060206 Palaeoecology
Socio Economic Objective 960305 Ecosystem Adaptation to Climate Change
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Grant ID ARC DP 150100690
Copyright notice ©2015, SEPM Society for Sedimentary Geology
Persistent URL http://hdl.handle.net/10536/DRO/DU:30073923

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