Una nueva especie de Baurubatrachus (Anura, Neobatrachia) del Cretácico Superior de la Formación Adamantina de Brasil proporciona evidencia sobre la diversidad de este género estrafalario [PDF]
, 2022 In the present paper, we report new anuran remains recovered from strata referred to the Adamantina Formation (Upper Cretaceous) cropping out near Catanduva city, São Paulo, Brazil.
Iori, Fabiano Vidoi +3 more
core +1 more source
The ultrastructure of the spermatozoa of Epipedobates flavopictus (Amphibia, Anura, Dendrobatidae), with comments on its evolutionary significance [PDF]
, 2002 We describe, for the first time, the spermatozoon ultrastructure of a dendrobatid frog, Epipedobates flavopictus. Mature spermatozoa of E. flavopictus are filiform, with a moderately curved head and a proportionally short tail. The acrosomal vesicle is a
Aguiar Júnior, Odair +4 more
core +1 more source
An extinct vertebrate preserved by its living hybridogenetic descendant. [PDF]
, 2017 Hybridogenesis is a special mode of hybrid reproduction where one parental genome is eliminated and the other is transmitted clonally. We propose that this mechanism can perpetuate the genome of extinct species, based on new genetic data from Pelophylax ...
Dubey, S., Dufresnes, C.
core +3 more sources
A new genus of neobatrachian frog from southern Patagonian forests, Argentina and Chile [PDF]
, 2011 In 1975 Lynch named a new species of frog based on two specimens from Puerto Eden, Wellington Island, southern Chile, tentatively allocated to the genus Telmatobius.
Basso, Nestor Guillermo +3 more
core +1 more source
Phylogenetic analyses reveal unexpected patterns in the evolution of reproductive modes in frogs [PDF]
, 2012 Understanding phenotypic diversity requires not only identification of selective factors that favor origins of derived states, but also factors that favor retention of primitive states.
Gómez-Mestre, Iván +2 more
core +1 more source
Digital dissection of the model organism Xenopus laevis using contrast-enhanced computed tomography [PDF]
, 2017 The African clawed frog, Xenopus laevis, is one of the most widely used model organisms in biological research. However, the most recent anatomical description of X. laevis was produced nearly a century ago.
Ahn +62 more
core +2 more sources
Molecular Characterization of Thyroid Hormone Receptors (TRs) and their Responsiveness to T3 in Microhyla fissipes [PDF]
, 2018 To explore and enrich the molecular mechanisms of thyroid hormone receptors (TRs) in the metamorphosis of amphibians, the cDNA sequences of TR alpha and TR beta in Microhyla fissipes were cloned and characterized.
Jiang, Jianping +3 more
core +1 more source
The frog inner ear: picture perfect? [PDF]
, 2015 This is the accepted manuscript of a paper published in the Journal of the Association for Research in Otolaryngology (2015) DOI: 10.1007/s10162-015-0506-zMany recent accounts of the frog peripheral auditory system have reproduced Wever's (1973 ...
Cobo-Cuan, Ariadna +4 more
core +2 more sources
Papers in Palaeontology, Volume 12, Issue 1, January/February 2026.Abstract The Late Cretaceous witnessed numerous transgression–regression sequences and the onset of a global cooling phase at the start of the Campanian. In the European archipelago, these environmental changes, combined with active plate tectonics, facilitated the formation of ephemeral land bridges that served as dispersal routes for a variety of ...
Olivier Jansen +5 more
wiley +1 more source
Ameghiniana, 2022 Fil: Iori, Fabiano Vidoi. Museu de Paleontologia “Prof. Antonio Celso de Arruda Campos"; Brasil.
Muzzopappa, Paula +3 more
openaire +2 more sources