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Neognathae (/ n i ˈ ɒ ɡ n ə θ iː /; from Ancient Greek νέος (néos) 'new, young' and γνάθος (gnáthos) 'jaw') is an infraclass of birds, called neognaths, within the class Aves of the clade Archosauria. Neognathae includes the majority of living birds; the exceptions being the tinamous and the flightless ratites, which belong ...
The paleognaths (Palaeognathae) are a clade of bird species of gondwanic distribution in Africa, South America, New Guinea, Australia and New Zealand. The group have more than 50 living species and includes the ostriches, rheas, kiwis, emus, cassowaries and tinamous. They are, with Neognathae, the two main lineages of modern birds .
Neoaves is a clade that consists of all modern birds (Neornithes or Aves) with the exception of Palaeognathae (ratites and kin) and Galloanserae (ducks, chickens and kin). [4] This group is defined in the PhyloCode by George Sangster and colleagues in 2022 as "the most inclusive crown clade containing Passer domesticus, but not Gallus gallus". [5]
Palaeognathae (/ ˌ p æ l i ˈ ɒ ɡ n ə θ i /; from Ancient Greek παλαιός (palaiós) 'old' and γνάθος (gnáthos) 'jaw') is an infraclass of birds, called paleognaths or palaeognaths, within the class Aves of the clade Archosauria. It is one of the two extant infraclasses of birds, the other being Neognathae, both of which
Articles relating to the Paleognathae, an infraclass of birds within the class Aves of the clade Archosauria.It is one of the two extant infraclasses of birds, the other being Neognathae, both of which form Neornithes.
Passerea is a clade of neoavian birds that was proposed by Jarvis et al. (2014). [3] Their genomic analysis recovered two major clades within Neoaves, Passerea and Columbea, and concluded that both clades appear to have many ecologically driven convergent traits.
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Early Cenozoic northern hemisphere paleognaths such as Lithornis, Pseudocrypturus, Paracathartes and Palaeotis appear to be the most basal members of the clade. [16] The various ratite lineages were probably descended from flying ancestors that independently colonised South America and Africa from the north, probably initially in South America.