Biofilm assists recognition of avian trackways in Late Pleistocene coastal aeolianites, South Africa

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dc.contributor.author Helm, Charles W.
dc.contributor.author Anderson, Robert J.
dc.contributor.author Buckley, Lisa G.
dc.contributor.author Cawthra, Hayley C.
dc.contributor.author de Vynck, Jan C.
dc.date.accessioned 2017-12-07T13:23:18Z
dc.date.available 2017-12-07T13:23:18Z
dc.date.issued 2017-12
dc.identifier.issn 2410-4418
dc.identifier.uri http://hdl.handle.net/10539/23462
dc.description.abstract Fourteen fossil avian tracksites have been identified in Late Pleistocene aeolianite deposits on the Cape south coast of SouthAfrica. One of these sites is unusual because of the preferential adherence of organic material (biofilm) to the natural cast tracks. This has enabled the recognition and identification of two ~6 m long, approximately parallel trackways that would otherwise not have been noticed. The trackways are visible from a distance of over 100 metres and contain 20 and 14 individual tracks, respectively. Up to 50 avian tracks are evident at this site. As the biofilm layer continues to thicken, the trackways become increasingly visible. Avian trackways of this length are globally rare.We propose that the biofilm adheres to sections with higher relief on a sedimentary surface, and that an understanding of this mode of preservation can be useful to more easily identify trackways in areas of comparable geological setting. en_ZA
dc.language.iso en en_ZA
dc.publisher Evolutionary Studies Institute en_ZA
dc.subject biofilm en_ZA
dc.subject avian trackways en_ZA
dc.subject aeolianites en_ZA
dc.subject Pleistocene en_ZA
dc.title Biofilm assists recognition of avian trackways in Late Pleistocene coastal aeolianites, South Africa en_ZA
dc.type Article en_ZA
dc.journal.volume 52 en_ZA
dc.journal.title Palaeontologia africana en_ZA
dc.description.librarian JNC en_ZA


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