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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ftzenodo:oai:zenodo.org:5013546 2023-06-06T11:46:37+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 2017-06-30 https://zenodo.org/record/5013546 https://doi.org/10.5061/dryad.mm4cc unknown doi:10.1111/pala.12251 https://zenodo.org/communities/dryad https://zenodo.org/record/5013546 https://doi.org/10.5061/dryad.mm4cc oai:zenodo.org:5013546 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode protaspis metamorphosis Proceratopyge cf. P. lata Furongian info:eu-repo/semantics/other dataset 2017 ftzenodo https://doi.org/10.5061/dryad.mm4cc10.1111/pala.12251 2023-04-13T21:31:38Z 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. 1. cranidia dataExcel file for cranidia measurements2. pygidia dataExcel fiel for pygidia measurements3. Average and SD of pygidia for grapherExcel fiel of averages and standard deviations of pygidia measurementsData matrix for TNTData matrix for ... Dataset Antarc* Antarctica Victoria Land Zenodo Victoria Land |
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unknown |
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protaspis metamorphosis Proceratopyge cf. P. lata Furongian |
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protaspis metamorphosis Proceratopyge cf. P. lata Furongian 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 |
protaspis metamorphosis Proceratopyge cf. P. lata Furongian |
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. 1. cranidia dataExcel file for cranidia measurements2. pygidia dataExcel fiel for pygidia measurements3. Average and SD of pygidia for grapherExcel fiel of averages and standard deviations of pygidia measurementsData matrix for TNTData matrix for ... |
format |
Dataset |
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 |
2017 |
url |
https://zenodo.org/record/5013546 https://doi.org/10.5061/dryad.mm4cc |
geographic |
Victoria Land |
geographic_facet |
Victoria Land |
genre |
Antarc* Antarctica Victoria Land |
genre_facet |
Antarc* Antarctica Victoria Land |
op_relation |
doi:10.1111/pala.12251 https://zenodo.org/communities/dryad https://zenodo.org/record/5013546 https://doi.org/10.5061/dryad.mm4cc oai:zenodo.org:5013546 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.mm4cc10.1111/pala.12251 |
_version_ |
1767951996216672256 |