Examinando por Autor "Teta P."

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    How integrative taxonomy can save a species from extinction: The supposedly extinct mouse opossum Cryptonanus ignitus (Diaz, Flores and Barquez, 2000) is a synonym of the living C. chacoensis (Tate, 1931)
    (Elsevier BV, 2019-01-01) Teta P.; Díaz-Nieto J.F.; Universidad EAFIT. Departamento de Ciencias; Biodiversidad, Evolución y Conservación
    We reviewed the taxonomic status of the “extinct” mouse opossum Cryptonanus ignitus (Diaz, Flores and Barquez, 2000). This species is only known from the type, an adult male collected in the province of Jujuy, northwestern Argentina, in 1962. Based on both qualitative and quantitative external and cranial traits and the analysis of DNA sequences extracted from the 57-year-old type skin, we confirm the suggestion of previous researchers that C. ignitus is an elderly example of the living species C. chacoensis (Tate, 1931). Most of the supposedly diagnostic morphological traits of C. ignitus (e.g., zygomatic arches unusually wide and robust, postorbital process of the jugal massively developed, prominent temporal scars) are age-correlated in didelphids and were observed in other adult specimens of C. chacoensis. The clay coloration of the ventral pelage of C. ignitus, which allegedly sets apart this species from other congeners, is here reported for new examples of C. chacoensis from other localities. Our results suggest the need to carefully evaluate the taxonomic status of other species supposed to have become extinct in recent times in mainland South America. © 2019 Deutsche Gesellschaft für Säugetierkunde
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    Redescription and phylogenetic position of Ctenomys dorsalis Thomas 1900, an enigmatic tuco tuco (Rodentia, Ctenomyidae) from the Paraguayan Chaco
    (De Gruyter, 2019-01-01) Londoño-Gaviria M.; Teta P.; Ríos S.D.; Patterson B.D.; Universidad EAFIT. Departamento de Ciencias; Biodiversidad, Evolución y Conservación
    Ctenomys dorsalis is known only from its type specimen, a female preserved as skin without skull (except for the upper incisors) from an imprecise locality in the "Northern Chaco of Paraguay". Here, we report additional individuals of this species housed, since the 1940s, at the Field Museum of Natural History (Chicago, USA). Based on these specimens, which fully match the original description of this rodent, we provide novel information regarding its phylogenetic position, external and cranial morphology, and distribution. The analysis of mtDNA sequences supports the distinctiveness of this taxon and suggests its placement within the boliviensis group of Ctenomys. Our study highlights once more the importance of museum collections as repositories of biodiversity. © 2018 Walter de Gruyter GmbH, Berlin/Boston 2018.