Bradley C. Livezey, Richard L. Zusi,
... a phylogenetic (cladistic) analysis of 150 taxa of Neornithes, including exemplars from all non-passeriform families, and ... indicated most nodes to be robust. Several fossil Neornithes (e.g. Dinornithiformes, Aepyornithiformes) were placed within the ... robust resolution at virtually all levels of the Neornithes. Findings included monophyly of the palaeognathous birds, comprising ... groups, together forming the sister-group to other Neornithes exclusive of the Palaeognathae (Neoaves). Noteworthy inferences include: ( ...
Tópico(s): Morphological variations and asymmetry
2007 - Oxford University Press | Zoological Journal of the Linnean Society
... tissues separate crown group crocodylians (Crocodylia) and birds (Neornithes). A phylogenetic perspective including fossils reveals that these ... Some character states that preceded the origin of Neornithes are only observable or inferable in extinct taxa. ... sequence of pelvic changes along the line to Neornithes. Soft tissue correlation with osteological structures allows changes ... Relatively few pelvic character states are unique to Neornithes. Indeed, many features evolved quite early along the line to Neornithes, blurring the distinction between 'avian' and 'non-avian' ...
Tópico(s): Ichthyology and Marine Biology
2001 - Oxford University Press | Zoological Journal of the Linnean Society
... tissues separate crown group crocodylians (Crocodylia) and birds (Neornithes). A phylogenetic perspective including fossils reveals that these ... Some character states that preceded the origin of Neornithes are only observable or inferable in extinct taxa. ... sequence of pelvic changes along the line to Neornithes. Soft tissue correlation with osteological structures allows changes ... Relatively few pelvic character states are unique to Neornithes. Indeed, many features evolved quite early along the line to Neornithes, blurring the distinction between 'avian' and 'non-avian' ...
Tópico(s): Avian ecology and behavior
2001 - Oxford University Press | Zoological Journal of the Linnean Society
Gareth J. Dyke, Marcel van Tuinen,
... of the evolutionary radiation of anatomically modern birds (Neornithes) remains contentious: dramatically different timescales for this major ... current understanding of the early fossil history of Neornithes in conjunction with available phylogenetic resolution for the ... of molecular approaches for timing the radiation of Neornithes is emphasized, the tenet of this review remains ...
Tópico(s): Ichthyology and Marine Biology
2004 - Oxford University Press | Zoological Journal of the Linnean Society
Talia M. Lowi‐Merri, Roger Benson, Santiago Claramunt, David C. Evans,
... dinosaurs, leading to remarkable variation in modern birds (Neornithes). The avian sternum is the anchor for the ... the highly varying flight and swimming styles of Neornithes. Results We find evidence for isometry of sternal ... novel understanding of sternum form and function in Neornithes. Our study lays the groundwork for estimating the locomotory abilities of paravian dinosaurs, the ancestors to Neornithes, by highlighting the importance of this critical element ...
Tópico(s): Morphological variations and asymmetry
2021 - BioMed Central | BMC Biology
... skull. Study of craniofacial pneumaticity in modern birds (Neornithes) indicates the presence of two separate systems: nasal ... of avian origins. Within avian phylogeny, Ornithurae and Neornithes are well–supported by pneumatic synapomorphies. There is ... towards reduction of craniofacial pneumaticity within Hesperornithiformes. Within Neornithes, four derived pneumatic characters suggest that the Palaeognathae ( ...
Tópico(s): Avian ecology and behavior
1990 - Oxford University Press | Zoological Journal of the Linnean Society
Soichiro Kawabe, Tetsuya Shimokawa, Hitoshi Miki, Takashi Okamoto, Seiji Matsuda,
... a strong linear correlation. Thus, in the extant Neornithes (modern birds), it is possible to estimate brain ... fit satisfactorily with the reported values in extinct Neornithes, suggesting that the method is applicable not only for extant, but also for extinct Neornithes and might be a powerful tool to obtain ...
Tópico(s): Ichthyology and Marine Biology
2009 - Karger Publishers | Brain Behavior and Evolution
Antoine Louchart, Laurent Viriot,
... P) boundary, 65.5 Ma [4]. Only toothless Neornithes survived the K–P crisis, and later became exceptionally diverse during the Cenozoic. As Neornithes comprises 94% of the approximately 10 500 toothless ... inner surfaces of the jaw bones in all Neornithes. These sheaths consist of a heavily keratinized stratum ...
Tópico(s): Turtle Biology and Conservation
2011 - Elsevier BV | Trends in Ecology & Evolution
... bearing importantly on the origins of modern birds (Neornithes). This was followed by an exposition on the ... of Life” program, one to encompass extant birds (Neornithes), avian relatives from the Mesozoic (outgroups), and nonavialian ...
Tópico(s): Avian ecology and behavior
2006 - | Bulletin of Carnegie Museum of Natural History
Nicholas R. Longrich, Jakob Vinther, Qingjin Meng, Quangguo Li, Anthony P. Russell,
In modern birds (Neornithes), the wing is composed of a layer of long, asymmetrical flight feathers overlain by short covert feathers [1Lucas A. ... show that their wings differ from those of Neornithes in being composed of multiple layers of feathers. ... have lacked the range of functions seen in Neornithes, limiting their flight ability.
Tópico(s): Amphibian and Reptile Biology
2012 - Elsevier BV | Current Biology
Robert L. Nudds, Gareth J. Dyke, J. M. V. Rayner,
... BI = humerus length/ulna length) of modern birds (Neornithes) varies significantly between clades at all taxonomic levels, ... BI of greater than 1 is primitive for Neornithes, more basal groups of Mesozoic birds (Confuciusornithidae and ...
Tópico(s): Genomics and Phylogenetic Studies
2004 - Royal Society | Proceedings of the Royal Society B Biological Sciences
David J. Varricchio, Daniel E. Barta,
... yet reached the modern egg-adult proportions of Neornithes.Sediment-bound upright eggs appear common to Enantiornithes ... permitted the type of nesting diversity found in Neornithes.Neornithes are the only Mesozoic clade of Dinosauria to ...
Tópico(s): Evolution and Paleontology Studies
2014 - Institute of Paleobiology | Acta Palaeontologica Polonica
... on the femoral shaft. On the line to Neornithes, most changes of femoral morphology predated Aves and ... the hindlimb within Dinosauromorpha on the line to Neornithes. The clade Ornithurae evolved the last few hindlimb ...
Tópico(s): Ichthyology and Marine Biology
2001 - Oxford University Press | Zoological Journal of the Linnean Society
... on the femoral shaft. On the line to Neornithes, most changes of femoral morphology predated Aves and ... the hindlimb within Dinosauromorpha on the line to Neornithes. The clade Ornithurae evolved the last few hindlimb ...
Tópico(s): Avian ecology and behavior
2001 - Oxford University Press | Zoological Journal of the Linnean Society
Carla J. du Toit, Anusuya Chinsamy, Susan J. Cunningham,
... sample representing all orders of extant modern birds (Neornithes), we provide evidence that the lithornithids (the most ... touch probe foraging evolved very early among the Neornithes and it may even have predated the palaeognathous– ... that the tactile bony bill-tip organ in Neornithes may have originated from other snout tactile specializations ...
Tópico(s): Evolution and Paleontology Studies
2020 - Royal Society | Proceedings of the Royal Society B Biological Sciences
Neil Brocklehurst, Daniel J. Field,
The origin of crown birds (Neornithes) remains contentious owing to conflicting divergence time hypotheses obtained from alternative sources of data. The fossil record suggests limited diversification of Neornithes in the Late Mesozoic and a substantial radiation ... best supported by our analyses is one where Neornithes originated between the Early and Late Cretaceous ( ca ...
Tópico(s): Paleontology and Stratigraphy of Fossils
2024 - Royal Society | Proceedings of the Royal Society B Biological Sciences
... groups, the Ichthyornithiformes and the modern birds, or Neornithes. This paper provides morphological data corroborating the divergence of the two basal clades of the Neornithes: the Palaeognathae (tinamous and ratites) and Neognathae (all ...
Tópico(s): Ichthyology and Marine Biology
1986 - Cambridge University Press | Paleobiology
... describe el nuevo genero y especie de ave Neornithes Lamarqueavis australis. El especimen consiste en un coracoides ... sobre la base del pobre registro fosil de Neornithes en el Mesozoico, hipotesis previas acerca del Centro ...
Tópico(s): Evolution and Paleontology Studies
2010 - University of Salamanca | Stvdia geologica salmanticensia
Tobin L. Hieronymus, Lawrence M. Witmer,
... primitive state for the clade including extant birds (Neornithes). Simple rhamphothecae are the result of the loss ... Ancestral-character-state reconstructions of rhamphothecal morphology within Neornithes also show a considerable amount of homoplasy. We ...
Tópico(s): Morphological variations and asymmetry
2010 - Oxford University Press | Ornithology
Bent Erik Kramer Lindow, Gareth J. Dyke,
... pattern of the evolutionary radiation of modern birds (Neornithes) has been debated for more than 10 years. ... tandem with the known Paleogene fossil record of Neornithes has recently begun to illuminate this evolutionary event. ...
Tópico(s): Paleontology and Stratigraphy of Fossils
2007 - Wiley | Biological reviews/Biological reviews of the Cambridge Philosophical Society
... which can be shown to be part of Neornithes, let alone being a crown group representative of any extant avian taxon. Crown group Neornithes are unknown until the late Cretaceous, about 70 ...
Tópico(s): Ichthyology and Marine Biology
2007 - Wiley | Cladistics
Xianyu Wang, Robert L. Nudds, Gareth J. Dyke,
... towards the crown of the tree (‘modern birds’; Neornithes). Variance in this ratio also coincides with the enormous evolutionary radiation at the base of Neornithes. Because the fprim/ta ratio is linked to ...
Tópico(s): Animal Behavior and Reproduction
2011 - Oxford University Press | Journal of Evolutionary Biology
Federico L. Agnolín, Fernando E. Novas,
... Province, Argentina. This specimen is referred to cf. Neornithes because it presents a distinct but shallow infratrochlear ... it may represent part of the crown clade Neornithes, the limited data available do not confidently support ...
Tópico(s): Ichthyology and Marine Biology
2011 - Springer Nature | PalZ
Bent Erik Kramer Lindow, Gareth J. Dyke,
... pattern of the evolutionary radiation of modern birds (Neornithes) has been debated for more than 10 years. ... tandem with the known Paleogene fossil record of Neornithes has recently begun to illuminate this evolutionary event. ...
Tópico(s): Paleontology and Stratigraphy of Fossils
2006 - Wiley | Biological reviews/Biological reviews of the Cambridge Philosophical Society
Richard L. Zusi, Bradley C. Livezey,
... provisionally considered to be homologous among modern birds (Neornithes). The palatinum can be divided topographically into four ... function, and phylogenetic corollaries that facilitate comparisons within Neornithes and with Mesozoic allies. Emphasis on study of ...
Tópico(s): Evolution and Paleontology Studies
2006 - | Annals of Carnegie Museum
... evolution from the first archosaurs to Crocodylia and Neornithes, outlining where transitions of locomotor function evolved. I ... partir des premiers archosaures jusqu'aux Crocodiliens et Néornithes, en soulignant où les transitions de la fonction ...
Tópico(s): Amphibian and Reptile Biology
2006 - Elsevier BV | Comptes Rendus Palevol
... 65.5 mya) are clearly attributable to the Neornithes (modern birds), and the earliest well-established records ... and more difficult to seat phylogenetically within the Neornithes (Dyke and van Tuinen 2004). Not a few ...
Tópico(s): Avian ecology and behavior
2005 - Oxford University Press | Ornithology
D. Charles Deeming, Marcello Ruta,
... the eggs of recent through to Mesozoic birds (neornithe plus non-neornithe avialans), as well as in eggs attributed to ...
Tópico(s): Evolution and Paleontology Studies
2014 - Royal Society | Royal Society Open Science
Graeme T. Lloyd, David W. Bapst, Matt Friedman, Katie E. Davis,
... Dinosauria, (ii) Avialae (the earliest birds) and (iii) Neornithes (crown birds). We find: (i) the plausibility of ... bird and (iii) a Late Cretaceous origin for Neornithes that is broadly congruent with other node- and ...
Tópico(s): Plant Diversity and Evolution
2016 - Royal Society | Biology Letters
David J. Varricchio, Frankie D. Jackson,
... troodontid-grade paravians, (4) Enantiornithes, and (5) basal Neornithes.Major changes occurred incrementally in egg size, shape, ... yolk and facilitate proper embryonic development during rotation.Neornithes are the only Mesozoic clade of Dinosauria to ...
Tópico(s): Avian ecology and behavior
2016 - Oxford University Press | Ornithology