Data from: Ontogeny of the Furongian (late Cambrian) trilobite Proceratopyge cf. P. Lata Whitehouse from northern Victoria Land, Antarctica, and the evolution of metamorphosis in trilobites
There were multiple origins of metamorphosis-undergoing protaspides in trilobite evolution: within the superfamilies Remopleuridioidea, Trinucleoidea, and within the Order Asaphida. Recent studies have revealed that the protaspides of the Cambrian representatives of the Remopleuridioidea and the Tri...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:94480 2023-07-02T03:30:19+02:00 Data from: Ontogeny of the Furongian (late Cambrian) trilobite Proceratopyge cf. P. Lata Whitehouse from northern Victoria Land, Antarctica, and the evolution of metamorphosis in trilobites Park, Tae-Yoon S. Kihm, Ji-Hoon Woo, Jusun Kim, Young-Hwan G. Lee, Jong-Ik 2016-08-01T19:15:17.000+02:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-re-musb https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:94480 unknown doi:10.5061/dryad.mm4cc/1 doi:10.5061/dryad.mm4cc/2 doi:10.5061/dryad.mm4cc/3 doi:10.5061/dryad.mm4cc/4 doi:10.1111/pala.12251 http://nbn-resolving.org/urn:nbn:nl:ui:13-re-musb doi:10.5061/dryad.mm4cc https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:94480 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2016 ftdans https://doi.org/10.5061/dryad.mm4cc/110.5061/dryad.mm4cc/210.5061/dryad.mm4cc/310.5061/dryad.mm4cc/410.1111/pala.1225110.5061/dryad.mm4cc 2023-06-13T13:22:36Z There were multiple origins of metamorphosis-undergoing protaspides in trilobite evolution: within the superfamilies Remopleuridioidea, Trinucleoidea, and within the Order Asaphida. Recent studies have revealed that the protaspides of the Cambrian representatives of the Remopleuridioidea and the Trinucleoidea did not undergo metamorphosis. However, ontogeny of the Cambrian members of the Order Asaphida has remained unknown. This study documents the ontogeny of the Furongian asaphoidean ceratopygid trilobite, Proceratopyge cf. P. lata Whitehouse, from northern Victoria Land, Antarctica. Two stages for the protaspid phase, five developmental stages for the post-protaspid cranidia, and ten stages for the post-protaspid pygidia have been identified. Interestingly, the protaspis directly developed into a meraspis without metamorphosis. A new cladistic analysis resulted in a single most parsimonious tree, according to which the presence of the bulbous commutavi protaspis turns out to be a synapomorphy for Asaphidae + Cyclopygoidea, not a synapomorphy for the Order Asaphida as previously suggested. In addition, it is inferred that there was convergent evolution of indirectly-developing commutavi protaspides during the Furongian and Early Ordovician. Metamorphosis-entailing planktonic larvae evolved in many different metazoan lineages near the Cambrian–Ordovician transition, due to the escalating ecological pressure of the Great Ordovician Biodiversification Event. Since the bulbous commutavi protaspid morphology is thought to be an adaptation for a planktonic life mode, the convergent evolution of the indirect development in the three trilobite lineages at this period might have been a result of adaptation to the early phase of the Great Ordovician Biodiversification Event. Other/Unknown Material Antarc* Antarctica Victoria Land Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) Victoria Land |
institution |
Open Polar |
collection |
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
op_collection_id |
ftdans |
language |
unknown |
topic |
Life sciences medicine and health care |
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Life sciences medicine and health care Park, Tae-Yoon S. Kihm, Ji-Hoon Woo, Jusun Kim, Young-Hwan G. Lee, Jong-Ik Data from: Ontogeny of the Furongian (late Cambrian) trilobite Proceratopyge cf. P. Lata Whitehouse from northern Victoria Land, Antarctica, and the evolution of metamorphosis in trilobites |
topic_facet |
Life sciences medicine and health care |
description |
There were multiple origins of metamorphosis-undergoing protaspides in trilobite evolution: within the superfamilies Remopleuridioidea, Trinucleoidea, and within the Order Asaphida. Recent studies have revealed that the protaspides of the Cambrian representatives of the Remopleuridioidea and the Trinucleoidea did not undergo metamorphosis. However, ontogeny of the Cambrian members of the Order Asaphida has remained unknown. This study documents the ontogeny of the Furongian asaphoidean ceratopygid trilobite, Proceratopyge cf. P. lata Whitehouse, from northern Victoria Land, Antarctica. Two stages for the protaspid phase, five developmental stages for the post-protaspid cranidia, and ten stages for the post-protaspid pygidia have been identified. Interestingly, the protaspis directly developed into a meraspis without metamorphosis. A new cladistic analysis resulted in a single most parsimonious tree, according to which the presence of the bulbous commutavi protaspis turns out to be a synapomorphy for Asaphidae + Cyclopygoidea, not a synapomorphy for the Order Asaphida as previously suggested. In addition, it is inferred that there was convergent evolution of indirectly-developing commutavi protaspides during the Furongian and Early Ordovician. Metamorphosis-entailing planktonic larvae evolved in many different metazoan lineages near the Cambrian–Ordovician transition, due to the escalating ecological pressure of the Great Ordovician Biodiversification Event. Since the bulbous commutavi protaspid morphology is thought to be an adaptation for a planktonic life mode, the convergent evolution of the indirect development in the three trilobite lineages at this period might have been a result of adaptation to the early phase of the Great Ordovician Biodiversification Event. |
author |
Park, Tae-Yoon S. Kihm, Ji-Hoon Woo, Jusun Kim, Young-Hwan G. Lee, Jong-Ik |
author_facet |
Park, Tae-Yoon S. Kihm, Ji-Hoon Woo, Jusun Kim, Young-Hwan G. Lee, Jong-Ik |
author_sort |
Park, Tae-Yoon S. |
title |
Data from: Ontogeny of the Furongian (late Cambrian) trilobite Proceratopyge cf. P. Lata Whitehouse from northern Victoria Land, Antarctica, and the evolution of metamorphosis in trilobites |
title_short |
Data from: Ontogeny of the Furongian (late Cambrian) trilobite Proceratopyge cf. P. Lata Whitehouse from northern Victoria Land, Antarctica, and the evolution of metamorphosis in trilobites |
title_full |
Data from: Ontogeny of the Furongian (late Cambrian) trilobite Proceratopyge cf. P. Lata Whitehouse from northern Victoria Land, Antarctica, and the evolution of metamorphosis in trilobites |
title_fullStr |
Data from: Ontogeny of the Furongian (late Cambrian) trilobite Proceratopyge cf. P. Lata Whitehouse from northern Victoria Land, Antarctica, and the evolution of metamorphosis in trilobites |
title_full_unstemmed |
Data from: Ontogeny of the Furongian (late Cambrian) trilobite Proceratopyge cf. P. Lata Whitehouse from northern Victoria Land, Antarctica, and the evolution of metamorphosis in trilobites |
title_sort |
data from: ontogeny of the furongian (late cambrian) trilobite proceratopyge cf. p. lata whitehouse from northern victoria land, antarctica, and the evolution of metamorphosis in trilobites |
publishDate |
2016 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-re-musb https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:94480 |
geographic |
Victoria Land |
geographic_facet |
Victoria Land |
genre |
Antarc* Antarctica Victoria Land |
genre_facet |
Antarc* Antarctica Victoria Land |
op_relation |
doi:10.5061/dryad.mm4cc/1 doi:10.5061/dryad.mm4cc/2 doi:10.5061/dryad.mm4cc/3 doi:10.5061/dryad.mm4cc/4 doi:10.1111/pala.12251 http://nbn-resolving.org/urn:nbn:nl:ui:13-re-musb doi:10.5061/dryad.mm4cc https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:94480 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.mm4cc/110.5061/dryad.mm4cc/210.5061/dryad.mm4cc/310.5061/dryad.mm4cc/410.1111/pala.1225110.5061/dryad.mm4cc |
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1770274531909304320 |