Haootia quadriformis n. gen., n. sp., interpreted as a muscular cnidarian impression from the Late Ediacaran period (approx. 560 Ma)
Muscle tissue is a fundamentally eumetazoan attribute. The oldest evidence for fossilized muscular tissue before the Early Cambrian has hitherto remained moot, being reliant upon indirect evidence in the form of Late Ediacaran ichnofossils. We here report a candidate muscle-bearing organism, Haootia...
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ftpubmed:oai:pubmedcentral.nih.gov:4173675 2023-05-15T17:22:08+02:00 Haootia quadriformis n. gen., n. sp., interpreted as a muscular cnidarian impression from the Late Ediacaran period (approx. 560 Ma) Liu, Alexander G. Matthews, Jack J. Menon, Latha R. McIlroy, Duncan Brasier, Martin D. 2014-10-22 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4173675 http://www.ncbi.nlm.nih.gov/pubmed/25165764 https://doi.org/10.1098/rspb.2014.1202 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC http://www.ncbi.nlm.nih.gov/pubmed/25165764 http://dx.doi.org/10.1098/rspb.2014.1202 http://creativecommons.org/licenses/by/4.0/ © 2014 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. CC-BY Research Articles Text 2014 ftpubmed https://doi.org/10.1098/rspb.2014.1202 2014-10-25T23:59:39Z Muscle tissue is a fundamentally eumetazoan attribute. The oldest evidence for fossilized muscular tissue before the Early Cambrian has hitherto remained moot, being reliant upon indirect evidence in the form of Late Ediacaran ichnofossils. We here report a candidate muscle-bearing organism, Haootia quadriformis n. gen., n. sp., from approximately 560 Ma strata in Newfoundland, Canada. This taxon exhibits sediment moulds of twisted, superimposed fibrous bundles arranged quadrilaterally, extending into four prominent bifurcating corner branches. Haootia is distinct from all previously published contemporaneous Ediacaran macrofossils in its symmetrically fibrous, rather than frondose, architecture. Its bundled fibres, morphology, and taphonomy compare well with the muscle fibres of fossil and extant Cnidaria, particularly the benthic Staurozoa. Haootia quadriformis thus potentially provides the earliest body fossil evidence for both metazoan musculature, and for Eumetazoa, in the geological record. Text Newfoundland PubMed Central (PMC) Canada Moot ENVELOPE(-64.083,-64.083,-65.200,-65.200) Proceedings of the Royal Society B: Biological Sciences 281 1793 20141202 |
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English |
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Research Articles |
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Research Articles Liu, Alexander G. Matthews, Jack J. Menon, Latha R. McIlroy, Duncan Brasier, Martin D. Haootia quadriformis n. gen., n. sp., interpreted as a muscular cnidarian impression from the Late Ediacaran period (approx. 560 Ma) |
topic_facet |
Research Articles |
description |
Muscle tissue is a fundamentally eumetazoan attribute. The oldest evidence for fossilized muscular tissue before the Early Cambrian has hitherto remained moot, being reliant upon indirect evidence in the form of Late Ediacaran ichnofossils. We here report a candidate muscle-bearing organism, Haootia quadriformis n. gen., n. sp., from approximately 560 Ma strata in Newfoundland, Canada. This taxon exhibits sediment moulds of twisted, superimposed fibrous bundles arranged quadrilaterally, extending into four prominent bifurcating corner branches. Haootia is distinct from all previously published contemporaneous Ediacaran macrofossils in its symmetrically fibrous, rather than frondose, architecture. Its bundled fibres, morphology, and taphonomy compare well with the muscle fibres of fossil and extant Cnidaria, particularly the benthic Staurozoa. Haootia quadriformis thus potentially provides the earliest body fossil evidence for both metazoan musculature, and for Eumetazoa, in the geological record. |
format |
Text |
author |
Liu, Alexander G. Matthews, Jack J. Menon, Latha R. McIlroy, Duncan Brasier, Martin D. |
author_facet |
Liu, Alexander G. Matthews, Jack J. Menon, Latha R. McIlroy, Duncan Brasier, Martin D. |
author_sort |
Liu, Alexander G. |
title |
Haootia quadriformis n. gen., n. sp., interpreted as a muscular cnidarian impression from the Late Ediacaran period (approx. 560 Ma) |
title_short |
Haootia quadriformis n. gen., n. sp., interpreted as a muscular cnidarian impression from the Late Ediacaran period (approx. 560 Ma) |
title_full |
Haootia quadriformis n. gen., n. sp., interpreted as a muscular cnidarian impression from the Late Ediacaran period (approx. 560 Ma) |
title_fullStr |
Haootia quadriformis n. gen., n. sp., interpreted as a muscular cnidarian impression from the Late Ediacaran period (approx. 560 Ma) |
title_full_unstemmed |
Haootia quadriformis n. gen., n. sp., interpreted as a muscular cnidarian impression from the Late Ediacaran period (approx. 560 Ma) |
title_sort |
haootia quadriformis n. gen., n. sp., interpreted as a muscular cnidarian impression from the late ediacaran period (approx. 560 ma) |
publisher |
The Royal Society |
publishDate |
2014 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4173675 http://www.ncbi.nlm.nih.gov/pubmed/25165764 https://doi.org/10.1098/rspb.2014.1202 |
long_lat |
ENVELOPE(-64.083,-64.083,-65.200,-65.200) |
geographic |
Canada Moot |
geographic_facet |
Canada Moot |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC http://www.ncbi.nlm.nih.gov/pubmed/25165764 http://dx.doi.org/10.1098/rspb.2014.1202 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ © 2014 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1098/rspb.2014.1202 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
281 |
container_issue |
1793 |
container_start_page |
20141202 |
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