Results 1 to 10 of about 177 (86)

Fossil fishes and anurans from the Miocene of Rio Chico and Cerro Zeballos, Chubut Province, Argentina [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2021
The fossil record of freshwater fishes and anurans from the Miocene in Patagonia is relatively patchy, a large number of specimens remaining undescribed.
FEDERICO L. AGNOLÍN   +2 more
doaj   +3 more sources

Geographic distribution of the rare and endangered Telmatobufo venustus (Philippi, 1899) (Anura, Calyptocephalellidae), with the description of a new locality and comments on the type locality [PDF]

open access: yesHerpetozoa, 2023
Telmatobufo venustus was one of the rarest endemic amphibians of Chile until 2020. Prior to that year, this species had been known in four localities, three of them with uncertain location, including the type locality.
Claudio Correa   +3 more
doaj   +4 more sources

Amphibia, Anura, Calyptocephalellidae, Telmatobufo bullocki Schmidt, 1952: distribution extension, habitat use and geographic distribution map [PDF]

open access: yesCheck List, 2010
We report a new locality for Telmatobufo bullocki, a critically endangered amphibian endemic of Chile. This new location, Los Queules National Reserve, has high relevance on the conservation of this species because is the only known population in a ...
Denise Donoso   +4 more
doaj   +5 more sources

The origin of modern frogs (Neobatrachia) was accompanied by acceleration in mitochondrial and nuclear substitution rates [PDF]

open access: yesBMC Genomics, 2012
Background Understanding the causes underlying heterogeneity of molecular evolutionary rates among lineages is a long-standing and central question in evolutionary biology.
Irisarri Iker   +5 more
doaj   +2 more sources

A new species of Telmatobufo (Schmidt 1852) (Anura, Calyptocephalellidae) from a remnant of the Maulino Forest, central Chile Una nueva especie de Telmatobufo (Schmidt 1852) (Anura, Calyptocephalellidae) en un remanente de bosque Maulino, Chile Central

open access: yesGayana, 2010
A new species, Telmatobufo ignotus, from the Reserva Nacional Los Queules, Cauquenes Province, central Chile is described herein. The new taxon is hypothesized based on a new combination of adult, larval, and chromosomal characters.
César C Cuevas
doaj   +1 more source

A new geographic record of the endangered Telmatobufo venustus (Amphibia: Calyptocephalellidae) in the Biobío Region, Chile

open access: yesRevista Chilena de Historia Natural, 2021
We document the record of Telmatobufo venustus Phillipi (1899) in the Altos de Malalcura sector, Antuco, Biobío Region, Chile. This is the first record metamorphic Gosner 45 stage and the fourth georeferenced record of the species throughout its ...
Helen Díaz-Páez, Nicza Alveal
doaj   +1 more source

Primer registro de depredación de un adulto de Calyptocephalella gayi (Duméril & Bibron, 1841) (Anura, Calyptocephalellidae) por Ardea cocoi Linnaeus, 1766 (Pelecaniformes, Ardeidae)

open access: yesGayana (Concepción), 2021
Se reporta por primera vez la depredación de un adulto de rana chilena (Calyptocephalella gayi) por la garza cuca (Ardea cocoi), evento que se registró en video. La observación se realizó en el verano de 2021 en una laguna ubicada en una zona perturbada por la ganadería. Este registro se añade a la escasa información acerca la depredación sobre la rana
Felipe Durán   +2 more
openaire   +2 more sources

A new helmeted frog (Anura: Calyptocephalellidae) from an Eocene subtropical lake in northwestern Patagonia, Argentina

open access: yesJournal of Vertebrate Paleontology, 2011
ABSTRACT Eocene caldera-lake deposits from Rio Pichileufu have yielded anuran remains in association with a taxonomically diverse flora. The floral evidence suggests that these anurans lived under climatic conditions similar to those of extant subtropical rainforests.
Gomez, Raul Orencio   +2 more
openaire   +2 more sources

Postcranial osteogenesis of the helmeted water toad Calyptocephalella gayi (Neobatrachia: Calyptocephalellidae) with comments on the osteology of australobatrachians

open access: yesJournal of Morphology, 2015
ABSTRACTCalyptocephalella gayi is one of over 6,000 neobatrachians arranged into two main groups, Hyloides and Ranoides. Phylogenetically, C. gayi is placed in Australobatrachia, a Gondwanan clade that is either the most basal clade of Hyloides or the sister group of Hyloidea, depending on the cladistic hypothesis; as such, this species is a key taxon ...
Muzzopappa, Paula   +2 more
openaire   +3 more sources

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