Exploring the evolution and terrestrialization of scorpions (Arachnida: Scorpiones) with rocks and clocks

Scorpions (Arachnida: Scorpiones Koch, 1837) are an ancient chelicerate arthropod lineage characterised by distinctive subdivision of the opisthosoma and venomous toxicity. The crown group is represented by over 2400 extant species, and unambiguous fossil representatives are known at least from the...

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Autores: Howard, Richard J., Edgecombe, Gregory D., Legg, David A., Pisani, Davide, Lozano Fernández, Jesús
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/217081
Acceso en línea:http://hdl.handle.net/10261/217081
Access Level:acceso abierto
Palabra clave:Scorpions
Arachnids
Molecular clocks
Terrestrialization
Phylogenetics
Palaeobiology
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spelling Exploring the evolution and terrestrialization of scorpions (Arachnida: Scorpiones) with rocks and clocksHoward, Richard J.Edgecombe, Gregory D.Legg, David A.Pisani, DavideLozano Fernández, JesúsScorpionsArachnidsMolecular clocksTerrestrializationPhylogeneticsPalaeobiologyScorpions (Arachnida: Scorpiones Koch, 1837) are an ancient chelicerate arthropod lineage characterised by distinctive subdivision of the opisthosoma and venomous toxicity. The crown group is represented by over 2400 extant species, and unambiguous fossil representatives are known at least from the Cretaceous Period. However, a number of extinct scorpion lineages existed in the Palaeozoic Era, many of which are of a contentious marine (or at least semi-aquatic) lifestyle, and have long caused confusion regarding the nature of arachnid terrestrialization and arachnid phylogeny more broadly. To clarify the process of terrestrialization, there is a need to marry fossil and extant scorpions in a common evolutionary framework utilising modern advances in phylogenetics. Here, we review phylogenetic hypotheses of arachnid and scorpion interrelationships, relevant advances in phylogenetic divergence time estimation and the scorpion fossil record—especially with reference to terrestrialization. In addition, we provide a list of scorpion fossil calibrations for use in molecular dating and demonstrate their utility in deriving a novel scorpion time tree using Bayesian relaxed-clock methods. Our results reveal a window of divergence from 335 to 266 Mya for the scorpion crown group, consistent with a Pangean origin of crown scorpions inferred from the biogeographical distribution of the extant faunaR. J. Howard was supported by NERC GW4+ doctoral training partnership, D. A. Legg was supported by a Dame Kathleen Ollerenshaw Fellowship from the University of Manchester, and J. L-F was supported by a Marie Skłodowska-Curie fellowship (655814).NoSpringer NatureUniversity of Manchester202020202019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Preprintinfo:eu-repo/semantics/submittedVersionhttp://hdl.handle.net/10261/217081reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1007/s13127-019-00390-7Noinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2170812026-05-22T06:33:51Z
dc.title.none.fl_str_mv Exploring the evolution and terrestrialization of scorpions (Arachnida: Scorpiones) with rocks and clocks
title Exploring the evolution and terrestrialization of scorpions (Arachnida: Scorpiones) with rocks and clocks
spellingShingle Exploring the evolution and terrestrialization of scorpions (Arachnida: Scorpiones) with rocks and clocks
Howard, Richard J.
Scorpions
Arachnids
Molecular clocks
Terrestrialization
Phylogenetics
Palaeobiology
title_short Exploring the evolution and terrestrialization of scorpions (Arachnida: Scorpiones) with rocks and clocks
title_full Exploring the evolution and terrestrialization of scorpions (Arachnida: Scorpiones) with rocks and clocks
title_fullStr Exploring the evolution and terrestrialization of scorpions (Arachnida: Scorpiones) with rocks and clocks
title_full_unstemmed Exploring the evolution and terrestrialization of scorpions (Arachnida: Scorpiones) with rocks and clocks
title_sort Exploring the evolution and terrestrialization of scorpions (Arachnida: Scorpiones) with rocks and clocks
dc.creator.none.fl_str_mv Howard, Richard J.
Edgecombe, Gregory D.
Legg, David A.
Pisani, Davide
Lozano Fernández, Jesús
author Howard, Richard J.
author_facet Howard, Richard J.
Edgecombe, Gregory D.
Legg, David A.
Pisani, Davide
Lozano Fernández, Jesús
author_role author
author2 Edgecombe, Gregory D.
Legg, David A.
Pisani, Davide
Lozano Fernández, Jesús
author2_role author
author
author
author
dc.contributor.none.fl_str_mv University of Manchester
dc.subject.none.fl_str_mv Scorpions
Arachnids
Molecular clocks
Terrestrialization
Phylogenetics
Palaeobiology
topic Scorpions
Arachnids
Molecular clocks
Terrestrialization
Phylogenetics
Palaeobiology
description Scorpions (Arachnida: Scorpiones Koch, 1837) are an ancient chelicerate arthropod lineage characterised by distinctive subdivision of the opisthosoma and venomous toxicity. The crown group is represented by over 2400 extant species, and unambiguous fossil representatives are known at least from the Cretaceous Period. However, a number of extinct scorpion lineages existed in the Palaeozoic Era, many of which are of a contentious marine (or at least semi-aquatic) lifestyle, and have long caused confusion regarding the nature of arachnid terrestrialization and arachnid phylogeny more broadly. To clarify the process of terrestrialization, there is a need to marry fossil and extant scorpions in a common evolutionary framework utilising modern advances in phylogenetics. Here, we review phylogenetic hypotheses of arachnid and scorpion interrelationships, relevant advances in phylogenetic divergence time estimation and the scorpion fossil record—especially with reference to terrestrialization. In addition, we provide a list of scorpion fossil calibrations for use in molecular dating and demonstrate their utility in deriving a novel scorpion time tree using Bayesian relaxed-clock methods. Our results reveal a window of divergence from 335 to 266 Mya for the scorpion crown group, consistent with a Pangean origin of crown scorpions inferred from the biogeographical distribution of the extant fauna
publishDate 2019
dc.date.none.fl_str_mv 2019
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Preprint
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/217081
url http://hdl.handle.net/10261/217081
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1007/s13127-019-00390-7
No
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
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