A new genus of microteiid lizard from the Caparaó Mountains, southeastern Brazil, with a discussion of relationships among Gymnophthalminae ‪(‬Squamata‪)‬. (American Museum novitates, no. 3673)

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dc.contributor.authorRodrigues, Miguel Trefaut Urbano.
dc.contributor.authorCassimiro, José.
dc.contributor.authorPavan, Dante.
dc.contributor.authorCurcio, Felipe Franco.
dc.contributor.authorVerdade, Vanessa Kruth.
dc.contributor.authorPellegrino, Katia Cristina Machado.
dc.date.accessioned2009-12-10T18:18:41Z
dc.date.available2009-12-10T18:18:41Z
dc.date.issued2009
dc.description27 p. : ill., 1 map ; 26 cm. "November 30, 2009." Includes bibliographical references (p. 20-22).en
dc.description.abstractA new genus and species of microteiid lizard is described based on a series of specimens obtained at Parque Nacional do Caparaó ‪(‬20°28'S, 41°49'W‪)‬, southeastern Brazil, along the division line between the States of Minas Gerais and Espírito Santo. The new lizard occurs in isolated high-altitude, open, rocky habitats above the altitudinal limits of the Atlantic forest. It is characterized by the presence of prefrontals, frontoparietals, parietals, interparietal, and occipital scales; ear opening and eyelid distinct; three pairs of genials; absence of collar; lanceolate and mucronate dorsal scales; six regular transverse and longitudinal series of smooth ventrals that are longer than wide, with the lateral ones narrower. Maximum parsimony ‪(‬MP‪)‬ and partitioned Bayesian ‪(‬PBA‪)‬ phylogenetic analyses based on morphological and molecular characters with all known genera of Gymnophthalminae ‪(‬except for Scriptosaura‪)‬ plus Rhachisaurus recovered this new lizard in a clade having Colobodactylus and Heterodactylus as its closest relatives. Both analyses recovered the monophyly of Gymnophthalminae and Gymnophthalmini. The monophyly of the Heterodactylini received moderate support in MP analyses but was not recovered in PBA. To eliminate classification controversy between these results, the present concept of Heterodactylini is restricted to accommodate the new genus, Colobodactylus and Heterodactylus, and a new tribe Iphisiini is proposed to allocate Alexandresaurus, Iphisa, Colobosaura, Acratosaura, and Stenolepis. Current phylogenetic knowledge of Gymnophthalminae suggests that fossoriality and increase of body elongation arose as adaptive responses to avoid extreme surface temperatures, either cold or hot, depending on circumstances.en
dc.format.extent6156354 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/2246/6031
dc.language.isoen_USen
dc.publisherNew York, NY : American Museum of Natural History.en
dc.relation.ispartofseriesAmerican Museum novitates, no. 3673.en
dc.subjectCaparaonia itaiquara.en
dc.subjectCaparaonia.en
dc.subjectLizards.en
dc.subjectGymnophthalminae.en
dc.subjectParque Nacional do Caparaó.en
dc.subjectBrazil.en
dc.titleA new genus of microteiid lizard from the Caparaó Mountains, southeastern Brazil, with a discussion of relationships among Gymnophthalminae ‪(‬Squamata‪)‬. (American Museum novitates, no. 3673)en

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