2010
DOI: 10.1590/s0031-10492010001700001
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Abstract: Se describe una nueva y llamativa especie de Osornophryne de las estribaciones orientales de los Andes norte de Ecuador, Provincia de Sucumbíos, entre los 2.600 y 2.800 m. La nueva especie se distingue de la mayoría de sus congéneres (excepto de O. guacamayo) por presentar los dedos pediales IV y V alargados, probablemente como una adaptación a hábitos arbóreos. Osornophryne cofanorum sp. nov. difiere de todos los Osornophryne conocidos hasta el momento por presentar la piel dorsal co-osificada con el cráneo, … Show more

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“…Prootic bones are also evidently sculptured in several species of Melanophryniscus, including representatives of the M. stelzneri and M. tumifrons groups (e.g., M. klappenbachi and M. devincenzii) and early branching lineages (e.g., M. krauczuki). As already discussed, hyperossification of other skull bones has been reported in frontoparietals and occasionally part of the prootics of Osornophryne (Ruiz-Carranza and Herna ´ndez-Camacho 1976; Mueses-Cisneros et al 2010;Pa ´ez-Moscoso et al 2011), in maxillae and squamosals of Oreophrynella seegobini and O. weiassipuensis (and in the nasals of the latter; Kok et al 2020), and in squamosals and nasals of Atelopus (McDiarmid 1971;Ruiz-Carranza and Herna ´ndez-Camacho 1978;Coloma 1997). Ornamentation of ventral skull is not thoroughly described or discussed in these bufonids, but Coloma (1997) briefly commented on the sculptured surface of the sphenethmoid in Atelopus.…”
Section: Discussionmentioning
confidence: 80%
“…Prootic bones are also evidently sculptured in several species of Melanophryniscus, including representatives of the M. stelzneri and M. tumifrons groups (e.g., M. klappenbachi and M. devincenzii) and early branching lineages (e.g., M. krauczuki). As already discussed, hyperossification of other skull bones has been reported in frontoparietals and occasionally part of the prootics of Osornophryne (Ruiz-Carranza and Herna ´ndez-Camacho 1976; Mueses-Cisneros et al 2010;Pa ´ez-Moscoso et al 2011), in maxillae and squamosals of Oreophrynella seegobini and O. weiassipuensis (and in the nasals of the latter; Kok et al 2020), and in squamosals and nasals of Atelopus (McDiarmid 1971;Ruiz-Carranza and Herna ´ndez-Camacho 1978;Coloma 1997). Ornamentation of ventral skull is not thoroughly described or discussed in these bufonids, but Coloma (1997) briefly commented on the sculptured surface of the sphenethmoid in Atelopus.…”
Section: Discussionmentioning
confidence: 80%
“… Osornophryne is endemic to the Andes of Colombia and Ecuador, where it occurs in mountain forests and paramo at elevations between 2100 and 4000 m ( Ruiz-Carranza and Hernández-Camacho 1976 ; Gluesenkamp and Guayasamin 2008 ; Mueses-Cisneros et al 2010 ). Currently, Osornophryne contains 10 recognized species: Osornophryne angel ( Yánez-Muñoz et al 2010 ), Osornophryne antisana ( Hoogmoed 1987 ), Osornophryne bufoniformis ( Peracca 1904 ), Osornophryne guacamayo ( Hoogmoed 1987 ), Osornophryne occidentalis ( Cisneros-Heredia and Gluesenkamp 2010 ), Osornophryne percrassa ( Ruiz-Carranza and Hernández-Camacho 1976 ), Osornophryne puruanta ( Gluesenkamp and Guayasamin 2008 ), Osornophryne sumacoensis ( Gluesenkamp 1995 ), Osornophryne talipes ( Cannatella 1986 ) and Osornophryne cofanorum ( Mueses-Cisneros et al 2010 ). The evolutionary relationships between Osornophryne and other bufonid genera remain controversial, with some authors arguing a close affinity with Atelopus ( Coloma 1997 ; Gluesenkamp 2001 ), and others supporting a topology in which Osornophryne is sister to most other bufonids ( Bocxlaer et al 2010 ).…”
Section: Introductionmentioning
confidence: 99%