Results 21 to 30 of about 28,141 (186)

An expanded combined evidence approach to the Gavialis problem using geometric morphometric data from crocodylian braincases and Eustachian systems. [PDF]

open access: yesPLoS ONE, 2014
The phylogenetic position of the Indian gharial (Gavialis gangeticus) is disputed--morphological characters place Gavialis as the sister to all other extant crocodylians, whereas molecular and combined analyses find Gavialis and the false gharial ...
Maria Eugenia Leone Gold   +2 more
doaj   +1 more source

Allodaposuchus palustris sp. nov. from the upper cretaceous of Fumanya (South-Eastern Pyrenees, Iberian Peninsula): systematics, palaeoecology and palaeobiogeography of the enigmatic allodaposuchian crocodylians. [PDF]

open access: yesPLoS ONE, 2014
The controversial European genus Allodaposuchus is currently composed of two species (A. precedens, A. subjuniperus) and it has been traditionally considered a basal eusuchian clade of crocodylomorphs. In the present work, the new species A. palustris is
Alejandro Blanco   +4 more
doaj   +1 more source

Role of Chromosome Changes in Evolution and Diversity [PDF]

open access: yesGenomics & Informatics, 2015
The karyotypes of most species of crocodilians were studied using conventional and molecular cytogenetics. These provided an important contribution of chromosomal rearrangements for the evolutionary processes of Crocodylia and Sauropsida (birds and ...
Kornsorn Srikulnath   +2 more
doaj   +1 more source

Baraminic analysis of Crocodylia based on mitochondrial DNA similarity

open access: yes, 2023
Crocodiles, alligators, caimans, and gharials are interesting reptiles that are distinctly different from all other reptiles. These animals can be classified into three families within the order Crocodylia: Alligatoridae (alligators and caimans ...
Cserhati, Matthew
core   +1 more source

The evolution and role of the hyposphene-hypantrum articulation in Archosauria: phylogeny, size and/or mechanics? [PDF]

open access: yesRoyal Society Open Science, 2019
Living members of Archosauria, the reptile clade containing Crocodylia and Aves, have a wide range of skeletal morphologies, ecologies and body size.
Candice M. Stefanic   +1 more
doaj   +1 more source

A three-dimensional geometric morphometric analysis of the morphological transformation of Caiman lower jaw during post-hatching ontogeny [PDF]

open access: yesPeerJ, 2023
Shape ontogenetic changes of the lower jaw in crocodylians are poorly understood. In order to answer some questions related to the inter- and intraspecific morphological variation of the mandible of two extant Caiman species, we performed a three ...
María Victoria Fernandez Blanco   +2 more
doaj   +2 more sources

Quadrate orientation and joint reaction force underwent correlated evolution during suchian evolution. [PDF]

open access: yesJ Anat
The quadrate is the cranial bone of the nonmammalian jaw joint. The quadrate has long been hypothesized to mirror the direction of joint reaction forces (JRF) during feeding. This study uses 3D biomechanical modeling to reveal a striking evolutionary link between quadrate orientation and JRF direction, unlocking new insights into the dynamic forces ...
Sellers KC   +4 more
europepmc   +2 more sources

Non-Avian Reptiles of the state of Rio de Janeiro, Brazil: status of knowledge and commented list [PDF]

open access: yesPapéis Avulsos de Zoologia, 2020
We assessed the current knowledge on non-avian reptile species composition in the state of Rio de Janeiro (RJ), southeastern Brazil. We used published data in indexed journals and verified voucher specimens housed in the herpetological collections of the
Jane C.F. Oliveira   +4 more
doaj   +1 more source

Crocodylia Gmelin 1789

open access: yes, 2021
Published as part of Georgalis, Georgios L., Čerňanský, Andrej & Mayda, Serdar, 2021, Late Paleogene herpetofaunas from the crossroads between two continents - new amphibian and reptile remains from the Oligocene of southern Balkans and Anatolia, pp.
Georgalis, Georgios L.   +2 more
openaire   +2 more sources

Phylogeny and divergence ages in Crocodylia: implications for crown-clades and paleobiogeography [PDF]

open access: yes, 2023
Crocodylia is represented by semi-aquatic ambush predators that inhabit freshwater and estuarine environments in the tropical and subtropical regions of the globe.
Darlim de Oliveira, Gustavo   +1 more
core   +1 more source

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