Life cycle and morphology of a cambrian stem-lineage loriciferan.
Cycloneuralians form a rich and diverse element within Cambrian assemblages of exceptionally preserved fossils. Most resemble priapulid worms whereas other Cycloneuralia (Nematoda, Nematomorpha, Kinorhyncha, Loricifera), well known at the present day, have little or no fossil record. First reports o...
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ftdoajarticles:oai:doaj.org/article:86e0095b81d44349af715503ad91b609 2023-05-15T16:29:13+02:00 Life cycle and morphology of a cambrian stem-lineage loriciferan. John S Peel Martin Stein Reinhardt Møbjerg Kristensen 2013-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0073583 https://doaj.org/article/86e0095b81d44349af715503ad91b609 EN eng Public Library of Science (PLoS) https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23991198/?tool=EBI https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0073583 https://doaj.org/article/86e0095b81d44349af715503ad91b609 PLoS ONE, Vol 8, Iss 8, p e73583 (2013) Medicine R Science Q article 2013 ftdoajarticles https://doi.org/10.1371/journal.pone.0073583 2022-12-31T05:07:05Z Cycloneuralians form a rich and diverse element within Cambrian assemblages of exceptionally preserved fossils. Most resemble priapulid worms whereas other Cycloneuralia (Nematoda, Nematomorpha, Kinorhyncha, Loricifera), well known at the present day, have little or no fossil record. First reports of Sirilorica Peel, 2010 from the lower Cambrian Sirius Passet fauna of North Greenland described a tubular lorica covering the abdomen and part of a well developed introvert with a circlet of 6 grasping denticles near the lorica. The introvert is now known to terminate in a narrow mouth tube, while a conical anal field is also developed. Broad muscular bands between the plates in the lorica indicate that it was capable of movement by rhythmic expansion and contraction of the lorica. Sirilorica is regarded as a macrobenthic member of the stem-lineage of the miniaturised, interstitial, present day Loricifera. Like loriciferans, Sirilorica is now known to have grown by moulting. Evidence of the life cycle of Sirilorica is described, including a large post-larval stage and probably an initial larva similar to that of the middle Cambrian fossil Orstenoloricusshergoldii. Article in Journal/Newspaper Greenland North Greenland Directory of Open Access Journals: DOAJ Articles Greenland Sirius ENVELOPE(163.250,163.250,-84.133,-84.133) PLoS ONE 8 8 e73583 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
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Medicine R Science Q John S Peel Martin Stein Reinhardt Møbjerg Kristensen Life cycle and morphology of a cambrian stem-lineage loriciferan. |
topic_facet |
Medicine R Science Q |
description |
Cycloneuralians form a rich and diverse element within Cambrian assemblages of exceptionally preserved fossils. Most resemble priapulid worms whereas other Cycloneuralia (Nematoda, Nematomorpha, Kinorhyncha, Loricifera), well known at the present day, have little or no fossil record. First reports of Sirilorica Peel, 2010 from the lower Cambrian Sirius Passet fauna of North Greenland described a tubular lorica covering the abdomen and part of a well developed introvert with a circlet of 6 grasping denticles near the lorica. The introvert is now known to terminate in a narrow mouth tube, while a conical anal field is also developed. Broad muscular bands between the plates in the lorica indicate that it was capable of movement by rhythmic expansion and contraction of the lorica. Sirilorica is regarded as a macrobenthic member of the stem-lineage of the miniaturised, interstitial, present day Loricifera. Like loriciferans, Sirilorica is now known to have grown by moulting. Evidence of the life cycle of Sirilorica is described, including a large post-larval stage and probably an initial larva similar to that of the middle Cambrian fossil Orstenoloricusshergoldii. |
format |
Article in Journal/Newspaper |
author |
John S Peel Martin Stein Reinhardt Møbjerg Kristensen |
author_facet |
John S Peel Martin Stein Reinhardt Møbjerg Kristensen |
author_sort |
John S Peel |
title |
Life cycle and morphology of a cambrian stem-lineage loriciferan. |
title_short |
Life cycle and morphology of a cambrian stem-lineage loriciferan. |
title_full |
Life cycle and morphology of a cambrian stem-lineage loriciferan. |
title_fullStr |
Life cycle and morphology of a cambrian stem-lineage loriciferan. |
title_full_unstemmed |
Life cycle and morphology of a cambrian stem-lineage loriciferan. |
title_sort |
life cycle and morphology of a cambrian stem-lineage loriciferan. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2013 |
url |
https://doi.org/10.1371/journal.pone.0073583 https://doaj.org/article/86e0095b81d44349af715503ad91b609 |
long_lat |
ENVELOPE(163.250,163.250,-84.133,-84.133) |
geographic |
Greenland Sirius |
geographic_facet |
Greenland Sirius |
genre |
Greenland North Greenland |
genre_facet |
Greenland North Greenland |
op_source |
PLoS ONE, Vol 8, Iss 8, p e73583 (2013) |
op_relation |
https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23991198/?tool=EBI https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0073583 https://doaj.org/article/86e0095b81d44349af715503ad91b609 |
op_doi |
https://doi.org/10.1371/journal.pone.0073583 |
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PLoS ONE |
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8 |
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8 |
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e73583 |
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