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Cheliceral morphology of Solifugae (Arachnida): primary homology, terminology, and character survey

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dc.contributor.authorBird, Tharina Louise, author
dc.contributor.authorKondratieff, Boris, advisor
dc.contributor.authorCushing, Paula, advisor
dc.contributor.authorPrendini, Lorenzo, committee member
dc.contributor.authorWharton, Robert, committee member
dc.contributor.authorLaituri, Melinda, committee member
dc.date.accessioned2015-08-27T03:56:54Z
dc.date.available2016-06-03T03:56:54Z
dc.date.issued2015
dc.description.abstractArachnids of the order Solifugae (solifuges, false spiders, sunspiders, camelspiders, Walzenspinne, windspiders) possess the largest jaws for body size in the Chelicerata. The chelicerae provide the most important character systems for solifuge systematics, including dentition and the male flagellum, both used extensively in species delimitation and diagnosis. However, the terminology used for cheliceral characters is unstandardized and often contradictory, in part because it fails to represent homologous structures among taxa. Misinterpretation of character homology may introduce errors in phylogenetic analyses concerning relationships within Solifugae and among the orders of Chelicerata. This contribution presents the first comprehensive analysis of cheliceral morphology across the order Solifugae, the aims of which were to provide a broad survey of cheliceral characters for solifuge systematics, to identify and reinterpret structures based on primary homology, revise the terminology to be consistent with homology hypotheses, and provide a guide to synonyms of terminology and character interpretations in the literature. Chelicerae were studied in 188 exemplar species (17 % of the total), representing all twelve solifuge families, 17 of the 19 subfamilies, 64 genera (46 % of the total), and the full range of variation in cheliceral morphology across the order. In total, 157 species representing 49 genera and 17 subfamilies are illustrated. Hypotheses of character transformation, particularly concerning the male flagellum, and a standardized terminology, are presented. The functional morphology of the chelicerae is discussed and the role of sexually dimorphic modifications to the male chelicerae in mating behavior emphasized. The revised terminology, based on hypotheses of primary homology, will facilitate solifuge revisionary systematics and provide a stronger basis for reconstructing phylogenetic relationships within the order and evaluating its position within Chelicerata.
dc.format.mediumborn digital
dc.format.mediumdoctoral dissertations
dc.identifier.urihttp://hdl.handle.net/10217/166882
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relation.ispartof2000-2019
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.
dc.subjectChelicerata
dc.subjectfunctional morphology
dc.subjectchaetotaxy
dc.subjectmale flagellum
dc.subjectdentition
dc.titleCheliceral morphology of Solifugae (Arachnida): primary homology, terminology, and character survey
dc.typeText
dcterms.embargo.expires2016-06-03
dcterms.embargo.terms2016-06-03
dcterms.rights.dplaThis Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
thesis.degree.disciplineBioagricultural Sciences and Pest Management
thesis.degree.grantorColorado State University
thesis.degree.levelDoctoral
thesis.degree.nameDoctor of Philosophy (Ph.D.)

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