Results 141 to 150 of about 720 (168)
Common developmental origins of beak shapes and evolution in theropods. [PDF]
iScienceGarland KLS, Hay EM, Field DJ, Evans AR.
europepmc +1 more source
Phylogeny and sex chromosome evolution of Palaeognathae
Journal of Genetics and Genomics, 2022 Many paleognaths (ratites and tinamous) have a pair of homomorphic ZW sex chromosomes in contrast to the highly differentiated sex chromosomes of most other birds. To understand the evolutionary causes for the different tempos of sex chromosome evolution, we produced female genomes of 12 paleognathous species and reconstructed the phylogeny and the ...
Jilin Zhang +2 more
exaly +5 more sources
Palaeognathae: Apterygiformes, Casuariiformes, Rheiformes, Struthioniformes; Tinamiformes
, 2018 The infraclass Palaeognathae includes the flightless ratites (ostrich, emu, rhea, cassowary, kiwi) and the tinamous, a group of related, flighted birds. This chapter focuses on unique anatomy and important non-infectious and infectious diseases of these groups of birds.
Dale A. Smith
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Geometric morphometrics of the skull of Tinamidae (Aves, Palaeognathae)
Zoology, 2010 The Tinamidae comprise exclusively Neotropical palaegnathous birds, with homogeneous body morphology and no sexual dimorphism. The goal of this work was to explore the variation in skull morphology between taxa and its possible correspondence with features such as diet or gender using geometric morphometric tools.
Mariana B J Picasso
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Phylogenetic interpretation of eggs and eggshells: implications for phylogeny of Palaeognathae
Alcheringa, 2006This oological analysis supports Palaeognathae monophyly, and places Dromornithidae within Neognathae, the sister clade of Paleognathae. This Dromornithidae relationship is congruent with a recent phylogenetic hypothesis, based on cranial characters, that differs from the original assignment of this group of extinct birds to the Palaeognathae.
Gerald Grellet-Tinner
exaly +2 more sources
The evolution of tinamous (Palaeognathae: Tinamidae) in light of molecular and combined analyses
Zoological Journal of the Linnean Society, 2021Abstract The Neotropical tinamous are of particular interest in our efforts to understand the evolution of modern birds. They inhabit both forested and open environments and, although volant, have limited flight capabilities. Numerous studies have recognized the monophyly of tinamous and their relationships either as sister to the ...
Cunha Almeida, Francisca +3 more
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Hindlimb bones texture through postnatal ages of Rhea americana (Aves: Palaeognathae)
Anatomia, Histologia, Embryologia, 2023AbstractThe bone texture of Rhea americana was evaluated through the examination of a postnatal ontogenetic series. The hind limb bone surfaces of specimens of one, three and five months old, and adults were compared to characterize each stage according to the morphological features generated by their differential ossification.
M. B. J. Picasso +1 more
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The feeding apparatus of Rhea americana (Aves, Palaeognathae): Jaw myology and ontogenetic allometry
Journal of Morphology, 2023AbstractIn birds, the jaw musculature is a crucial adaptive feature involved in feeding. The morphological traits and postnatal growth patterns of jaw muscles constitute a useful proxy to interpret feeding function and ecology. This study aims to describe the jaw muscles of Rhea americana and explore their postnatal growth pattern.
Mariana B. J. Picasso +2 more
openaire +3 more sources