An overview of the postcranial osteology of caecilians (Gymnophiona, Lissamphibia). [PDF]
Abstract Caecilians comprise a relatively small (~220 species) group (Gymnophiona) of snake‐like or worm‐like, mostly tropical amphibians. Most adult caecilians are fossorial, although some species may live in aquatic or semi‐aquatic environments, either as larvae or adults.
Santos RO, Wilkinson M, Zaher H.
europepmc +4 more sources
The braincase of Eocaecilia micropodia (Lissamphibia, Gymnophiona) and the origin of Caecilians. [PDF]
The scant fossil record of caecilians has obscured the origin and evolution of this lissamphibian group. Eocaecilia micropodia from the Lower Jurassic of North America remains the only stem-group caecilian with an almost complete skull preserved. However,
Hillary C Maddin +2 more
doaj +6 more sources
Pinopsin Regulates Melatonin Production and Daily Locomotor Activity: Functional Insights From Gene-Edited Xenopus Tadpoles. [PDF]
ABSTRACT Circadian rhythm alignment depends on environmental light detection via opsins. Pinopsin, originally identified in the pineal organ of birds and later in amphibian pineal complex and eyes, may play a role in this process, though its function has not been genetically tested.
Heshami N +4 more
europepmc +2 more sources
A Review of the Scale and Sustainability of the Consumption and Trade of Anuran Species in Africa. [PDF]
ABSTRACT Within Africa, collection and trade of anurans is often recorded as single‐site case studies, making it difficult to accurately understand the scale of use, its livelihood importance, and impact on species. We conducted a systematic review to: compile literature on anuran uses in Africa; identify the species and ecoregions involved; and ...
Owusu-Gyamfi S +5 more
europepmc +2 more sources
Mitochondrial Phylogenomics and Genome Evolution in Anura: Insights From Structure and Gene Order Rearrangements. [PDF]
By analyzing 277 anuran mitochondrial genomes, this study reconstructs a robust phylogeny for frogs and toads, tracing their origins to the Triassic and major radiations to the Cretaceous‐Neogene. The research identifies 58 distinct gene arrangement patterns, providing a novel evolutionary framework.
He J +8 more
europepmc +2 more sources
Quantifying exposure of amphibian species to heat waves, cold spells, and droughts. [PDF]
Abstract Globally, amphibians face severe threats, such as climate change and associated extreme events. Our goal was to quantify global amphibian exposure to 3 classes of extreme events: heat waves, cold spells, and droughts. We used the MERRA‐2 extreme climate events data and the standardized precipitation–evapotranspiration index database to ...
Twomey E +4 more
europepmc +2 more sources
Seasonal Analysis of the Male Reproductive Tract and Germ Cell Proliferation in Leptodactylus podicipinus (Anura). [PDF]
Box 1: Anuran reproductive morphology and dynamics are complex and diverse. Box 2: It is essential to comprehend reproductive morphology in a broad sense and simultaneously at different organizational levels. Box 3: The study characterizes the components of the male reproductive tract and assess testicular cell proliferation throughout the reproductive
Bordin ROA, Oliveira C, Domeniconi RF.
europepmc +2 more sources
Amphibians and Reptiles Exhibit Different Ecological and Evolutionary Spatial Patterns in the Amazon Basin. [PDF]
This study investigates the spatial variability of ecological and evolutionary patterns in amphibian and reptile lineages within the Amazon Basin. Our findings highlight distinct diversity patterns across lineages and ecoregions. ABSTRACT Understanding spatial variability in ecological and evolutionary patterns is key to Amazonian biodiversity ...
López-Rojas JJ +3 more
europepmc +2 more sources
Urban-Wild Interface Diversity: A Comprehensive Checklist of Herpetofauna of Guayaquil, Ecuador. [PDF]
Amphibians and reptiles in Guayaquil comprise multiple taxonomic orders and occur across conservation areas, forest remnants, and urban parks, including several endemic species and numerous taxa with type localities in the city. Although most species are globally classified as Least Concern, discrepancies between global and national threat assessments ...
Cruz-García K +3 more
europepmc +2 more sources
Brain Reconstruction Across the Fish-Tetrapod Transition; Insights From Modern Amphibians
The fish-tetrapod transition (which incorporates the related fin-limb and water-land transitions) is celebrated as one of the most important junctions in vertebrate evolution.
Alice M. Clement +4 more
doaj +1 more source

