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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Cambridge University Press (CUP)
2014
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Online Access: | http://dx.doi.org/10.1666/13-054 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336000057115 |
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crcambridgeupr:10.1666/13-054 2024-06-23T07:57:25+00:00 Scratch Traces of Large Ediacara Bilaterian Animals Gehling, James G. Runnegar, Bruce N. Droser, Mary L. 2014 http://dx.doi.org/10.1666/13-054 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336000057115 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Journal of Paleontology volume 88, issue 2, page 284-298 ISSN 0022-3360 1937-2337 journal-article 2014 crcambridgeupr https://doi.org/10.1666/13-054 2024-05-29T08:08:41Z 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. Article in Journal/Newspaper White Sea Cambridge University Press White Sea Journal of Paleontology 88 2 284 298 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
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. |
format |
Article in Journal/Newspaper |
author |
Gehling, James G. Runnegar, Bruce N. Droser, Mary L. |
spellingShingle |
Gehling, James G. Runnegar, Bruce N. Droser, Mary L. Scratch Traces of Large Ediacara Bilaterian Animals |
author_facet |
Gehling, James G. Runnegar, Bruce N. Droser, Mary L. |
author_sort |
Gehling, James G. |
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 |
Cambridge University Press (CUP) |
publishDate |
2014 |
url |
http://dx.doi.org/10.1666/13-054 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336000057115 |
geographic |
White Sea |
geographic_facet |
White Sea |
genre |
White Sea |
genre_facet |
White Sea |
op_source |
Journal of Paleontology volume 88, issue 2, page 284-298 ISSN 0022-3360 1937-2337 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1666/13-054 |
container_title |
Journal of Paleontology |
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88 |
container_issue |
2 |
container_start_page |
284 |
op_container_end_page |
298 |
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1802651038030757888 |