Three-dimensional reconstruction, taphonomic and petrological data suggest the oldest record of bioturbation is a body fossil coquina ...
Fossil material assigned to Nenoxites from the late Ediacaran Khatyspyt Formation of Arctic Siberia (550–544 Ma) has been presented as evidence for bioturbation prior to the basal Cambrian boundary. However, that ichnological interpretation has been challenged, and descriptions of similar material f...
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ftdatacite:10.17863/cam.100076 2024-02-04T09:58:08+01:00 Three-dimensional reconstruction, taphonomic and petrological data suggest the oldest record of bioturbation is a body fossil coquina ... Psarras, Christos Donoghue, Philip Garwood, Russell Grazhdankin, Dmitriy V Parry, Luke A Rogov, Vladimir I Liu, Alexander 2023 https://dx.doi.org/10.17863/cam.100076 https://www.repository.cam.ac.uk/handle/1810/354167 en eng Wiley open.access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 http://purl.org/coar/access_right/c_abf2 Ediacaran, sedimentology, taphonomy, Nenoxites, bioturbation, petrology Article ScholarlyArticle JournalArticle article-journal 2023 ftdatacite https://doi.org/10.17863/cam.100076 2024-01-05T14:28:33Z Fossil material assigned to Nenoxites from the late Ediacaran Khatyspyt Formation of Arctic Siberia (550–544 Ma) has been presented as evidence for bioturbation prior to the basal Cambrian boundary. However, that ichnological interpretation has been challenged, and descriptions of similar material from other global localities support a body fossil origin. Here we combine X-ray computed tomography (μCT), scanning electron microscopy (SEM), and petrographic methods to evaluate the body- or tracefossil nature of Nenoxites from the Khatyspyt Formation. The fossilised structures comprise densely-packed chains of three-dimensionally preserved silicic, bowl-shaped elements surrounded by distinct sedimentary halos, within a dolomitized matrix. Individual bowl-shaped elements can exhibit diffuse mineralogical boundaries and bridging connections between elements, both considered here to result from silicification and dolomitization during diagenesis. This new morphological and petrological evidence, in conjunction ... Article in Journal/Newspaper Arctic Siberia DataCite Metadata Store (German National Library of Science and Technology) Arctic |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Ediacaran, sedimentology, taphonomy, Nenoxites, bioturbation, petrology |
spellingShingle |
Ediacaran, sedimentology, taphonomy, Nenoxites, bioturbation, petrology Psarras, Christos Donoghue, Philip Garwood, Russell Grazhdankin, Dmitriy V Parry, Luke A Rogov, Vladimir I Liu, Alexander Three-dimensional reconstruction, taphonomic and petrological data suggest the oldest record of bioturbation is a body fossil coquina ... |
topic_facet |
Ediacaran, sedimentology, taphonomy, Nenoxites, bioturbation, petrology |
description |
Fossil material assigned to Nenoxites from the late Ediacaran Khatyspyt Formation of Arctic Siberia (550–544 Ma) has been presented as evidence for bioturbation prior to the basal Cambrian boundary. However, that ichnological interpretation has been challenged, and descriptions of similar material from other global localities support a body fossil origin. Here we combine X-ray computed tomography (μCT), scanning electron microscopy (SEM), and petrographic methods to evaluate the body- or tracefossil nature of Nenoxites from the Khatyspyt Formation. The fossilised structures comprise densely-packed chains of three-dimensionally preserved silicic, bowl-shaped elements surrounded by distinct sedimentary halos, within a dolomitized matrix. Individual bowl-shaped elements can exhibit diffuse mineralogical boundaries and bridging connections between elements, both considered here to result from silicification and dolomitization during diagenesis. This new morphological and petrological evidence, in conjunction ... |
format |
Article in Journal/Newspaper |
author |
Psarras, Christos Donoghue, Philip Garwood, Russell Grazhdankin, Dmitriy V Parry, Luke A Rogov, Vladimir I Liu, Alexander |
author_facet |
Psarras, Christos Donoghue, Philip Garwood, Russell Grazhdankin, Dmitriy V Parry, Luke A Rogov, Vladimir I Liu, Alexander |
author_sort |
Psarras, Christos |
title |
Three-dimensional reconstruction, taphonomic and petrological data suggest the oldest record of bioturbation is a body fossil coquina ... |
title_short |
Three-dimensional reconstruction, taphonomic and petrological data suggest the oldest record of bioturbation is a body fossil coquina ... |
title_full |
Three-dimensional reconstruction, taphonomic and petrological data suggest the oldest record of bioturbation is a body fossil coquina ... |
title_fullStr |
Three-dimensional reconstruction, taphonomic and petrological data suggest the oldest record of bioturbation is a body fossil coquina ... |
title_full_unstemmed |
Three-dimensional reconstruction, taphonomic and petrological data suggest the oldest record of bioturbation is a body fossil coquina ... |
title_sort |
three-dimensional reconstruction, taphonomic and petrological data suggest the oldest record of bioturbation is a body fossil coquina ... |
publisher |
Wiley |
publishDate |
2023 |
url |
https://dx.doi.org/10.17863/cam.100076 https://www.repository.cam.ac.uk/handle/1810/354167 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Siberia |
genre_facet |
Arctic Siberia |
op_rights |
open.access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 http://purl.org/coar/access_right/c_abf2 |
op_doi |
https://doi.org/10.17863/cam.100076 |
_version_ |
1789962487493296128 |