Results 31 to 40 of about 2,982 (203)
Sesamoids in Caudata and Gymnophiona (Lissamphibia): absences and evidence
PeerJ, 2020 An integrative definition of sesamoid bones has been recently proposed, highlighting their relationship with tendons and ligaments, their genetic origin, the influence of epigenetic stimuli on their development, and their variable tissue composition.
María Laura Ponssa, Virginia Abdala
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Mitochondrial Evidence on the Phylogenetic Position of Caecilians (Amphibia: Gymnophiona) [PDF]
Genetics, 2000 AbstractThe complete nucleotide sequence (17,005 bp) of the mitochondrial genome of the caecilian Typhlonectes natans (Gymnophiona, Amphibia) was determined. This molecule is characterized by two distinctive genomic features: there are seven large 109-bp tandem repeats in the control region, and the sequence for the putative origin of replication of ...
Zardoya, Rafael, Meyer, Axel
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Biodiversidad de anfibios en México
Revista Mexicana de Biodiversidad, 2013 Los anfibios constituyen un grupo de vertebrados con una diversidad total de 376 especies lo cual posiciona a México como el quinto país en riqueza de anfibios. México cuenta con un total de 16 familias con representantes de los 3 órdenes.
Gabriela Parra-Olea +2 more
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The Karyology of Uraeotyphlus gansi, and Its Implications for the Systematics and Evolution of Uraeotyphlidae (Amphibia: Gymnophiona) [PDF]
, 2011 The gross karyotype of the uraeotyphlid caecilian Uraeotyphlus gansi is described as comprising 2n = 42 and fundamental number = 58. These are the first karyotype data for any species of malabaricus-group Uraeotyphlus, and the diploid number is the same ...
Gower, D.J. +3 more
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Animals, 2020 Reproduction in vertebrates is controlled by the hypothalamo-pituitary-gonadal axis, and both the sex steroid and pituitary hormones play a pivotal role in the regulation of the physiology of the oviduct and events occurring within the oviduct.
Claire Brun +2 more
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, 2015 Published as part of Benton, MJ, Donoghue, PCJ, Vinther, J, Asher, RJ, Friedman, M & Near, TJ, 2015, Constraints on the timescale of animal evolutionary history, pp. 1-107 in Palaeontologia Electronica (Florence, Italy) (Florence, Italy) 15 (1) on page 50, DOI: 10.26879/424, http://zenodo.org/record ...
Benton, MJ +5 more
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The Evolution of Amphibian Photoreception
Frontiers in Ecology and Evolution, 2019 There have been a growing number of studies into the visual evolution of vertebrates. However, there remain few detailed integrative studies on the visual system of amphibians using morphological, molecular and physiological methods outside of a few ...
Samantha Mila Mohun +5 more
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Extreme variation in the atrial septation of caecilians (Amphibia: Gymnophiona) [PDF]
Journal of Anatomy, 2014 AbstractCaecilians (order Gymnophiona) are elongate, limbless, snake‐like amphibians that are the sister‐group (closest relatives) of all other recent amphibians (frogs and salamanders). Little is known of their cardiovascular anatomy and physiology, but one nearly century old study suggests that Hypogeophis (family Indotyphlidae), commonly relied upon
Desiderius M. de Bakker +2 more
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Morphological Evidence for an Oral Venom System in Caecilian Amphibians
iScience, 2020 Summary: Amphibians are known for their skin rich in glands containing toxins employed in passive chemical defense against predators, different from, for example, snakes that have active chemical defense, injecting their venom into the prey.
Pedro Luiz Mailho-Fontana +6 more
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, 2011 Published as part of Wilkinson, Mark, Mauro, Diego San, Sherratt, Emma & Gower, David J., 2011, A nine-family classification of caecilians (Amphibia: Gymnophiona), pp.
Wilkinson, Mark +3 more
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