The Meaning and Measure of Concordance Factors in Phylogenomics. [PDF]
Mol Biol EvolLanfear R, Hahn MW.
europepmc +1 more source
Tactile bill-tip organs in seabirds suggest conservation of a deep avian symplesiomorphy. [PDF]
Biol Lettdu Toit CJ +4 more
europepmc +1 more source
A remarkable assemblage of petroglyphs and dinosaur footprints in Northeast Brazil. [PDF]
Sci RepTroiano LP +3 more
europepmc +1 more source
A new Transantarctic relationship: morphological evidence for a Rheidae-Dromaiidae-Casuariidae clade (Aves, Palaeognathae, Ratitae) [PDF]
Zoological Journal of the Linnean Society, 2009 Figure 2. Single most parsimonious tree showing the phylogenetic relationships between ratites. Length (L), 170; consistency index (CI), 0.87; retention index (RI), 0.95. Numbers above branches correspond to Bremer-support indices.
Estelle Bourdon +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
exaly +3 more sources
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 Picasso
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Analysis of Sex Chromosome Evolution in the Clade Palaeognathae from Phased Genome Assembly [PDF]
Genome Biology and Evolution, 2021 Abstract Birds in the clade Palaeognathae, excluding Tinamiformes, have morphologically conserved karyotypes and less differentiated ZW sex chromosomes compared with those of other birds. In particular, the sex chromosomes of the ostrich and emu have exceptionally large recombining pseudoautosomal regions (PARs), whereas non-PARs are ...
Judith Mank +2 more
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The peculiar syrinx of Rhea americana (Greater Rhea, Palaeognathae)
Vertebrate Zoology, 2013 This work studied the skeletal and muscular syringeal anatomy of Greater Rhea (Rhea americana) throughout postnatal ontogeny, by using muscle staining and differential coloring of cartilage and bone techniques. Anatomical syrinx dissections on four adults (one female and three males) and eight unsexed chicks, were made.
Mariana Picasso
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A lithornithid (Aves: Palaeognathae) from the Paleocene (Tiffanian) of southern California [PDF]
PaleoBios, 2014 The proximal end of a bird humerus recovered from the Paleocene Goler Formation of southern California is the oldest Cenozoic record of this clade from the west coast of North America. The fossil is characterized by a relatively large, dorsally-positioned head of the humerus and a subcircular opening to the pneumotricipital fossa, consistent with the ...
Andrew Farke, Thomas Stidham
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