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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ftpubmed:oai:pubmedcentral.nih.gov:3749095 2023-05-15T16:29:12+02:00 Life Cycle and Morphology of a Cambrian Stem-Lineage Loriciferan Peel, John S. Stein, Martin Kristensen, Reinhardt Møbjerg 2013-08-09 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3749095 http://www.ncbi.nlm.nih.gov/pubmed/23991198 https://doi.org/10.1371/journal.pone.0073583 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3749095 http://www.ncbi.nlm.nih.gov/pubmed/23991198 http://dx.doi.org/10.1371/journal.pone.0073583 This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY Research Article Text 2013 ftpubmed https://doi.org/10.1371/journal.pone.0073583 2013-09-05T04:07:03Z 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. Text Greenland North Greenland PubMed Central (PMC) Greenland Sirius ENVELOPE(163.250,163.250,-84.133,-84.133) PLoS ONE 8 8 e73583 |
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Research Article Peel, John S. Stein, Martin Kristensen, Reinhardt Møbjerg Life Cycle and Morphology of a Cambrian Stem-Lineage Loriciferan |
topic_facet |
Research Article |
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 |
Text |
author |
Peel, John S. Stein, Martin Kristensen, Reinhardt Møbjerg |
author_facet |
Peel, John S. Stein, Martin Kristensen, Reinhardt Møbjerg |
author_sort |
Peel, John S. |
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 |
publishDate |
2013 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3749095 http://www.ncbi.nlm.nih.gov/pubmed/23991198 https://doi.org/10.1371/journal.pone.0073583 |
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ENVELOPE(163.250,163.250,-84.133,-84.133) |
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Greenland Sirius |
geographic_facet |
Greenland Sirius |
genre |
Greenland North Greenland |
genre_facet |
Greenland North Greenland |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3749095 http://www.ncbi.nlm.nih.gov/pubmed/23991198 http://dx.doi.org/10.1371/journal.pone.0073583 |
op_rights |
This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
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CC-BY |
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https://doi.org/10.1371/journal.pone.0073583 |
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