Anatomically modern Carboniferous harvestmen demonstrate early cladogenesis and stasis in Opiliones
Harvestmen, the third most-diverse arachnid order, are an ancient group found on all continental landmasses, except Antarctica. However, a terrestrial mode of life and leathery, poorly mineralized exoskeleton makes preservation unlikely, and their fossil record is limited. The few Palaeozoic species...
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ftharvardudash:oai:dash.harvard.edu:1/34728604 2023-05-15T13:36:21+02:00 Anatomically modern Carboniferous harvestmen demonstrate early cladogenesis and stasis in Opiliones Garwood, Russell J. Dunlop, Jason A. Giribet, Gonzalo Sutton, Mark D. 2011 application/pdf http://nrs.harvard.edu/urn-3:HUL.InstRepos:34728604 https://doi.org/10.1038/ncomms1458 en_US eng Springer Nature doi:10.1038/ncomms1458 Nature Communications Garwood, Russell J., Jason A. Dunlop, Gonzalo Giribet, and Mark D. Sutton. 2011. “Anatomically Modern Carboniferous Harvestmen Demonstrate Early Cladogenesis and Stasis in Opiliones.” Nature Communications 2 (August 23): 444. doi:10.1038/ncomms1458. 2041-1723 http://nrs.harvard.edu/urn-3:HUL.InstRepos:34728604 Biological Sciences Evolution Palaeontology Zoology Journal Article 2011 ftharvardudash https://doi.org/10.1038/ncomms1458 2022-04-04T20:51:23Z Harvestmen, the third most-diverse arachnid order, are an ancient group found on all continental landmasses, except Antarctica. However, a terrestrial mode of life and leathery, poorly mineralized exoskeleton makes preservation unlikely, and their fossil record is limited. The few Palaeozoic species discovered to date appear surprisingly modern, but are too poorly preserved to allow unequivocal taxonomic placement. Here, we use high-resolution X-ray micro-tomography to describe two new harvestmen from the Carboniferous (~305 Myr) of France. The resulting computer models allow the first phylogenetic analysis of any Palaeozoic Opiliones, explicitly resolving both specimens as members of different extant lineages, and providing corroboration for molecular estimates of an early Palaeozoic radiation within the order. Furthermore, remarkable similarities between these fossils and extant harvestmen implies extensive morphological stasis in the order. Compared with other arachnids—and terrestrial arthropods generally—harvestmen are amongst the first groups to evolve fully modern body plans. Organismic and Evolutionary Biology Version of Record Article in Journal/Newspaper Antarc* Antarctica Harvard University: DASH - Digital Access to Scholarship at Harvard Nature Communications 2 1 |
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Harvard University: DASH - Digital Access to Scholarship at Harvard |
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English |
topic |
Biological Sciences Evolution Palaeontology Zoology |
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Biological Sciences Evolution Palaeontology Zoology Garwood, Russell J. Dunlop, Jason A. Giribet, Gonzalo Sutton, Mark D. Anatomically modern Carboniferous harvestmen demonstrate early cladogenesis and stasis in Opiliones |
topic_facet |
Biological Sciences Evolution Palaeontology Zoology |
description |
Harvestmen, the third most-diverse arachnid order, are an ancient group found on all continental landmasses, except Antarctica. However, a terrestrial mode of life and leathery, poorly mineralized exoskeleton makes preservation unlikely, and their fossil record is limited. The few Palaeozoic species discovered to date appear surprisingly modern, but are too poorly preserved to allow unequivocal taxonomic placement. Here, we use high-resolution X-ray micro-tomography to describe two new harvestmen from the Carboniferous (~305 Myr) of France. The resulting computer models allow the first phylogenetic analysis of any Palaeozoic Opiliones, explicitly resolving both specimens as members of different extant lineages, and providing corroboration for molecular estimates of an early Palaeozoic radiation within the order. Furthermore, remarkable similarities between these fossils and extant harvestmen implies extensive morphological stasis in the order. Compared with other arachnids—and terrestrial arthropods generally—harvestmen are amongst the first groups to evolve fully modern body plans. Organismic and Evolutionary Biology Version of Record |
format |
Article in Journal/Newspaper |
author |
Garwood, Russell J. Dunlop, Jason A. Giribet, Gonzalo Sutton, Mark D. |
author_facet |
Garwood, Russell J. Dunlop, Jason A. Giribet, Gonzalo Sutton, Mark D. |
author_sort |
Garwood, Russell J. |
title |
Anatomically modern Carboniferous harvestmen demonstrate early cladogenesis and stasis in Opiliones |
title_short |
Anatomically modern Carboniferous harvestmen demonstrate early cladogenesis and stasis in Opiliones |
title_full |
Anatomically modern Carboniferous harvestmen demonstrate early cladogenesis and stasis in Opiliones |
title_fullStr |
Anatomically modern Carboniferous harvestmen demonstrate early cladogenesis and stasis in Opiliones |
title_full_unstemmed |
Anatomically modern Carboniferous harvestmen demonstrate early cladogenesis and stasis in Opiliones |
title_sort |
anatomically modern carboniferous harvestmen demonstrate early cladogenesis and stasis in opiliones |
publisher |
Springer Nature |
publishDate |
2011 |
url |
http://nrs.harvard.edu/urn-3:HUL.InstRepos:34728604 https://doi.org/10.1038/ncomms1458 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
doi:10.1038/ncomms1458 Nature Communications Garwood, Russell J., Jason A. Dunlop, Gonzalo Giribet, and Mark D. Sutton. 2011. “Anatomically Modern Carboniferous Harvestmen Demonstrate Early Cladogenesis and Stasis in Opiliones.” Nature Communications 2 (August 23): 444. doi:10.1038/ncomms1458. 2041-1723 http://nrs.harvard.edu/urn-3:HUL.InstRepos:34728604 |
op_doi |
https://doi.org/10.1038/ncomms1458 |
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Nature Communications |
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2 |
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1 |
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1766077531422720000 |