Scratch traces of large ediacara bilaterian animals
Ediacara fan-shaped sets of paired scratches Kimberichnus teruzzii from the Ediacara Member of the Rawnsley Quartzite, South Australia, and the White Sea region of Russia, represent the earliest known evidence in the fossil record of feeding traces associated with the responsible bilaterian organism...
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ftunivadelaidedl:oai:digital.library.adelaide.edu.au:2440/93098 2023-12-17T10:51:25+01:00 Scratch traces of large ediacara bilaterian animals Gehling, J. Runnegar, B. Droser, M. 2014 http://hdl.handle.net/2440/93098 https://doi.org/10.1666/13-054 en eng Paleontological Society Journal of Paleontology, 2014; 88(2):284-298 0022-3360 1937-2337 http://hdl.handle.net/2440/93098 doi:10.1666/13-054 © 2014, The Paleontological Society http://dx.doi.org/10.1666/13-054 Journal article 2014 ftunivadelaidedl https://doi.org/10.1666/13-054 2023-11-20T23:28:26Z Ediacara fan-shaped sets of paired scratches Kimberichnus teruzzii from the Ediacara Member of the Rawnsley Quartzite, South Australia, and the White Sea region of Russia, represent the earliest known evidence in the fossil record of feeding traces associated with the responsible bilaterian organism. These feeding patterns exclude arthropod makers and point to the systematic feeding excavation of seafloor microbial mats by large bilaterians of molluscan grade. Since the scratch traces were made into microbial mats, animals could crawl over previous traces without disturbing them. The trace maker is identified as Kimberella quadrata , whose death masks co-occur with the mat excavation traces in both Russia and South Australia. The co-occurrence of animals and their systematic feeding traces in the record of the Ediacara biota supports previous trace fossil evidence that bilaterians existed globally before the Cambrian explosion of life in the ocean. James G. Gehling, Bruce N. Runnegar, and Mary L. Droser Article in Journal/Newspaper White Sea The University of Adelaide: Digital Library White Sea Journal of Paleontology 88 2 284 298 |
institution |
Open Polar |
collection |
The University of Adelaide: Digital Library |
op_collection_id |
ftunivadelaidedl |
language |
English |
description |
Ediacara fan-shaped sets of paired scratches Kimberichnus teruzzii from the Ediacara Member of the Rawnsley Quartzite, South Australia, and the White Sea region of Russia, represent the earliest known evidence in the fossil record of feeding traces associated with the responsible bilaterian organism. These feeding patterns exclude arthropod makers and point to the systematic feeding excavation of seafloor microbial mats by large bilaterians of molluscan grade. Since the scratch traces were made into microbial mats, animals could crawl over previous traces without disturbing them. The trace maker is identified as Kimberella quadrata , whose death masks co-occur with the mat excavation traces in both Russia and South Australia. The co-occurrence of animals and their systematic feeding traces in the record of the Ediacara biota supports previous trace fossil evidence that bilaterians existed globally before the Cambrian explosion of life in the ocean. James G. Gehling, Bruce N. Runnegar, and Mary L. Droser |
format |
Article in Journal/Newspaper |
author |
Gehling, J. Runnegar, B. Droser, M. |
spellingShingle |
Gehling, J. Runnegar, B. Droser, M. Scratch traces of large ediacara bilaterian animals |
author_facet |
Gehling, J. Runnegar, B. Droser, M. |
author_sort |
Gehling, J. |
title |
Scratch traces of large ediacara bilaterian animals |
title_short |
Scratch traces of large ediacara bilaterian animals |
title_full |
Scratch traces of large ediacara bilaterian animals |
title_fullStr |
Scratch traces of large ediacara bilaterian animals |
title_full_unstemmed |
Scratch traces of large ediacara bilaterian animals |
title_sort |
scratch traces of large ediacara bilaterian animals |
publisher |
Paleontological Society |
publishDate |
2014 |
url |
http://hdl.handle.net/2440/93098 https://doi.org/10.1666/13-054 |
geographic |
White Sea |
geographic_facet |
White Sea |
genre |
White Sea |
genre_facet |
White Sea |
op_source |
http://dx.doi.org/10.1666/13-054 |
op_relation |
Journal of Paleontology, 2014; 88(2):284-298 0022-3360 1937-2337 http://hdl.handle.net/2440/93098 doi:10.1666/13-054 |
op_rights |
© 2014, The Paleontological Society |
op_doi |
https://doi.org/10.1666/13-054 |
container_title |
Journal of Paleontology |
container_volume |
88 |
container_issue |
2 |
container_start_page |
284 |
op_container_end_page |
298 |
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1785576676476846080 |