Traces of Locomotion of Ediacaran Macroorganisms
We describe traces of macroorganisms in association with the body imprints of trace-producers from Ediacaran (Vendian) deposits of the southeastern White Sea region. They are interpreted as traces of locomotion and are not directly related to a food gathering. The complex remains belong to three spe...
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ftmdpi:oai:mdpi.com:/2076-3263/9/9/395/ 2023-08-20T04:10:19+02:00 Traces of Locomotion of Ediacaran Macroorganisms Andrey Ivantsov Aleksey Nagovitsyn Maria Zakrevskaya agris 2019-09-11 application/pdf https://doi.org/10.3390/geosciences9090395 EN eng Multidisciplinary Digital Publishing Institute Biogeosciences https://dx.doi.org/10.3390/geosciences9090395 https://creativecommons.org/licenses/by/4.0/ Geosciences; Volume 9; Issue 9; Pages: 395 Ediacaran biota trace fossils Dickinsonia Kimberella Tribrachidium Text 2019 ftmdpi https://doi.org/10.3390/geosciences9090395 2023-07-31T22:35:55Z We describe traces of macroorganisms in association with the body imprints of trace-producers from Ediacaran (Vendian) deposits of the southeastern White Sea region. They are interpreted as traces of locomotion and are not directly related to a food gathering. The complex remains belong to three species: Kimberella quadrata, Dickinsonia cf. menneri, and Tribrachidium heraldicum. They were found in three different burials. The traces have the form of narrow ridges or wide bands (grooves and linear depressions on natural imprints). In elongated Kimberella and Dickinsonia, the traces are stretched parallel to the longitudinal axis of the body and extend from its posterior end. In the case of the isometric Tribrachidium, the trace is directed away from the margin of the shield. A short length of the traces indicates that they were left by the organisms that were covered with the sediment just before their death. The traces overlaid the microbial mat with no clear signs of deformation under or around the traces. A trace substance, apparently, differed from the material of the bearing layers (i.e., a fine-grained sandstone or siltstone) and was not preserved on the imprints. This suggests that the traces were made with organic material, probably mucus, which was secreted by animals in a stressful situation. The mucus traced the movements of the organism before death. The discovered traces of locomotion are direct evidence of the ability of some Ediacaran macroorganisms to move independently. Text White Sea MDPI Open Access Publishing White Sea Geosciences 9 9 395 |
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MDPI Open Access Publishing |
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ftmdpi |
language |
English |
topic |
Ediacaran biota trace fossils Dickinsonia Kimberella Tribrachidium |
spellingShingle |
Ediacaran biota trace fossils Dickinsonia Kimberella Tribrachidium Andrey Ivantsov Aleksey Nagovitsyn Maria Zakrevskaya Traces of Locomotion of Ediacaran Macroorganisms |
topic_facet |
Ediacaran biota trace fossils Dickinsonia Kimberella Tribrachidium |
description |
We describe traces of macroorganisms in association with the body imprints of trace-producers from Ediacaran (Vendian) deposits of the southeastern White Sea region. They are interpreted as traces of locomotion and are not directly related to a food gathering. The complex remains belong to three species: Kimberella quadrata, Dickinsonia cf. menneri, and Tribrachidium heraldicum. They were found in three different burials. The traces have the form of narrow ridges or wide bands (grooves and linear depressions on natural imprints). In elongated Kimberella and Dickinsonia, the traces are stretched parallel to the longitudinal axis of the body and extend from its posterior end. In the case of the isometric Tribrachidium, the trace is directed away from the margin of the shield. A short length of the traces indicates that they were left by the organisms that were covered with the sediment just before their death. The traces overlaid the microbial mat with no clear signs of deformation under or around the traces. A trace substance, apparently, differed from the material of the bearing layers (i.e., a fine-grained sandstone or siltstone) and was not preserved on the imprints. This suggests that the traces were made with organic material, probably mucus, which was secreted by animals in a stressful situation. The mucus traced the movements of the organism before death. The discovered traces of locomotion are direct evidence of the ability of some Ediacaran macroorganisms to move independently. |
format |
Text |
author |
Andrey Ivantsov Aleksey Nagovitsyn Maria Zakrevskaya |
author_facet |
Andrey Ivantsov Aleksey Nagovitsyn Maria Zakrevskaya |
author_sort |
Andrey Ivantsov |
title |
Traces of Locomotion of Ediacaran Macroorganisms |
title_short |
Traces of Locomotion of Ediacaran Macroorganisms |
title_full |
Traces of Locomotion of Ediacaran Macroorganisms |
title_fullStr |
Traces of Locomotion of Ediacaran Macroorganisms |
title_full_unstemmed |
Traces of Locomotion of Ediacaran Macroorganisms |
title_sort |
traces of locomotion of ediacaran macroorganisms |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2019 |
url |
https://doi.org/10.3390/geosciences9090395 |
op_coverage |
agris |
geographic |
White Sea |
geographic_facet |
White Sea |
genre |
White Sea |
genre_facet |
White Sea |
op_source |
Geosciences; Volume 9; Issue 9; Pages: 395 |
op_relation |
Biogeosciences https://dx.doi.org/10.3390/geosciences9090395 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/geosciences9090395 |
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Geosciences |
container_volume |
9 |
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9 |
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395 |
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