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dc.contributor.author
Abdala, Cristian Simón
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dc.date.available
2020-04-06T13:48:27Z
dc.date.issued
2006-12
dc.identifier.citation
Abdala, Cristian Simón; Three traditional muscular characters in the phylogeny of Liolaemus (Squamata: Tropiduridae) a reappraisal.; Mapress; Zootaxa; 1205; 12-2006; 55-68
dc.identifier.issn
1175-5334
dc.identifier.uri
http://hdl.handle.net/11336/102014
dc.description.abstract
Liolaemus is one of the most speciosus genera of lizards, having more than 200 species. It is composed of small to moderate-sized lizards that live throughout most of austral South America. Many groups whose phylogenetic relationships have been controversial compose the genus. The proposed phylogenetic relationships of these lizards have been based on data-sets from many sources. In all of the morphological data-sets, three myologycal characters have been considered particularly important:1) insertion of the m. tibialis anticus hypertrophied in association with the presence of a sharp, bladelike process of the tibia, 2) medial head of the m. flexor tibialis internus covered by a hypertrophied m. puboisquitibialis, and 3) presence of melanic pigment within the medial portion of the epimysium of the m. pterygomandibularis. Important taxonomic and anatomical questions about these characters remain: 1) Can the size of the m. puboisquiotibilis be scored with only two character states? 2) Is there a close relationship between the hypertrophied m. flexor tibialis internus and the patch of the enlarged proximal postfemoral scales? and 3) Are these muscular characters exclusive to some of the groups of Liolaemus that have been proposed? Focusing on these questions, we have conducted a taxonomic and anatomic review of these characters in 42 species representing all of the proposed groups of Liolaemus. The analyzed samples show that variations in the considered muscular characters are much more gradual than previously stated. The only exception is the insertion of the m. tibialis anticus hypertrophied in relation to a bladelike hypertrophy of the tibia, which characterizes the montanus group of E theridge (1995). These characters seem to have the same phylogenetic information as any other morphological character. Although the coding we used is more complex, it shows more precisely the subtlety of the change in the character states.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Mapress
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Reptilia, Liolaemus
dc.subject
cranial and limb myology characters
dc.subject
phylogeny
dc.subject.classification
Ciencias de las Plantas, Botánica
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Three traditional muscular characters in the phylogeny of Liolaemus (Squamata: Tropiduridae) a reappraisal.
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-03-30T14:32:08Z
dc.identifier.eissn
1175-5336
dc.journal.volume
1205
dc.journal.pagination
55-68
dc.journal.pais
Nueva Zelanda
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dc.journal.ciudad
Auckland
dc.description.fil
Fil: Abdala, Cristian Simón. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - Tucumán. Unidad Ejecutora Lillo; Argentina
dc.journal.title
Zootaxa
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.mapress.com/j/zt/article/view/zootaxa.1205.1.3/22065
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