Results 71 to 80 of about 28,452 (201)
Giant extinct caiman breaks constraint on the axial skeleton of extant crocodylians
eLife, 2019 The number of precaudal vertebrae in all extant crocodylians is remarkably conservative, with nine cervicals, 15 dorsals and two sacrals, a pattern present also in their closest extinct relatives.
Torsten M Scheyer +6 more
doaj +1 more source
Putative avian teeth from the Late Cretaceous of Alberta, Canada, are more likely from crocodilians.
PLoS ONE, 2023 Isolated teeth, previously referred to Aves, are more common than other bird fossils from the Late Cretaceous of Alberta. However, there are no known morphological synapomorphies that distinguish isolated bird teeth, and features of these teeth are ...
Sydney R Mohr +2 more
doaj +1 more source
A Latitudinal Gradient of Reference Genomes
Molecular Ecology, Volume 34, Issue 23, December 2025.ABSTRACT Global inequality rooted in legacies of colonialism and uneven development can lead to systematic biases in scientific knowledge. In ecology and evolutionary biology, findings, funding and research effort are disproportionately concentrated at high latitudes, while biological diversity is concentrated at low latitudes.
Ethan B. Linck, Carlos Daniel Cadena
wiley +1 more source
Biota Colombiana, 2014 Crocodylus intermedius (Graves 1819), commonly known at the Orinoco Crocodile, is an endemic species of the Orinoco River Basin that occurs in Colombia and Venezuela. Within the Neotropical Crocodylia, it is considered the most endangered species, listed
Mónica A. Morales-Betancourt +3 more
doaj +1 more source
Egg shape changes at the theropod–bird transition, and a morphometric study of amniote eggs [PDF]
, 2014 The eggs of amniotes exhibit a remarkable variety of shapes, from spherical to elongate and from symmetrical to asymmetrical. We examine eggshell geometry in a diverse sample of fossil and living amniotes using geometric morphometrics and linear ...
Abramoff MD +14 more
core +1 more source
Crown Clades in Vertebrate Nomenclature: Correcting the Definition of Crocodylia [PDF]
Systematic Biology, 2008 Wiens, J. J. 2001. Character analysis in morphological phylogenetics: Problems and solutions. Syst. Biol. 50:689–699. Wiens, J. J., and R. E. Etheridge. 2003. Phylogenetic relationships of hoplocercid lizards: Coding and combining meristic, morphometric, and polymorphic data using step matrices. Herpetologica 59:375– 398. Wiens, J. J., and M.
Martin, Jeremy E., Benton, Michael J.
openaire +3 more sources
Semicircular canal morphology in Rodentia and its relationship to locomotion
Journal of Anatomy, Volume 247, Issue 5, Page 953-969, November 2025.Here, we present a selection of rodent inner ear 3D models in the lateral view, with rodents from seven locomotor categories (left to right: fossorial, semifossorial, semiaquatic, terrestrial, ricochetal, arboreal, and gliding). Semicircular canal (SCC) morphology, including radius of curvature and shape, can be differentiated between specialized forms
Lily Hou +4 more
wiley +1 more source
Exploring gaps, biases, and research priorities in the evidence for reptile conservation actions
Conservation Biology, Volume 39, Issue 5, October 2025.Abstract With over 21% of reptile species threatened with extinction, there is an urgent need to ensure conservation actions to protect and restore populations are informed by relevant, reliable evidence. We examined the geographic and taxonomic distribution of 707 studies that tested the effects of actions to conserve reptiles synthesized in ...
Oliver Speight +9 more
wiley +1 more source
The evolution of muscle spindles
Experimental Physiology, Volume 110, Issue 10, Page 1401-1421, October 1, 2025.Abstract Muscle spindles are stretch‐sensitive mechanoreceptors found in the skeletal muscles of most four‐limbed vertebrates. They are unique amongst sensory receptors in the ability to regulate their sensitivity by contraction of the intrafusal muscle fibres on which the sensory endings lie.
Robert W. Banks, Uwe Proske
wiley +1 more source
New Crocodyliforms from Southwestern Europe and Definition of a Diverse Clade of European Late Cretaceous Basal Eusuchians. [PDF]
PLoS ONE, 2015 The late Campanian-early Maastrichtian site of Lo Hueco (Cuenca, Spain) has provided a set of well-preserved crocodyliform skull and lower jaw remains, which are described here and assigned to a new basal eusuchian taxon, Lohuecosuchus megadontos gen. et
Iván Narváez +4 more
doaj +1 more source