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Arthropod trackways from the Early Devonian of South Wales: A functional analysis of producers and their behaviour

Briggs, D. E.G.; Smith, A.; Marriott, Susan; Braddy, S. J.

Authors

D. E.G. Briggs

A. Smith

Susan Marriott

S. J. Braddy



Abstract

Abundant arthropod trackways, assigned to Diplichnites gouldi, are described from the Lower Old Red Sandstone (Early Devonian; Lochkovian) of Pant-y-Maes quarry, Brecon Beacons, South Wales. The trackways are preserved on bedding planes of finely laminated planar and rippled siltstones. The sedimentology of the succession indicates that these units represent bar top and marginal deposits in a braided fluvial setting. Two trackway types are recognized (Type A and B); comparisons with contemporaneous myriapodous producers favour kampecarid and eoarthropleurid myriapods, respectively. Functional analysis of the trackways indicates that the producers were not using the most efficient, stable, walking techniques, but instead utilized in-phase 'swimming stroke'-like gaits. Together with their occurrence on rippled surfaces, and lateral displacement of some trackways (attributed to currents), this indicates that they were produced sub-aqueously.

Citation

Briggs, D. E., Smith, A., Braddy, S. J., & Marriott, S. (2003). Arthropod trackways from the Early Devonian of South Wales: A functional analysis of producers and their behaviour. Geological Magazine, 140(1), 63-72. https://doi.org/10.1017/S0016756802006982

Journal Article Type Article
Publication Date Jan 1, 2003
Journal Geological Magazine
Print ISSN 0016-7568
Publisher Cambridge University Press (CUP)
Peer Reviewed Not Peer Reviewed
Volume 140
Issue 1
Pages 63-72
DOI https://doi.org/10.1017/S0016756802006982
Keywords arthropod trackways, Early Devonian, South Wales, producers
Public URL https://uwe-repository.worktribe.com/output/1072134
Publisher URL http://dx.doi.org/10.1017/S0016756802006982


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