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Neognathae is now universally accepted to subdivide into two lineages, the "fowl" clade Galloanseres and the Neoaves (sometimes called "higher neognaths"). The formal PhyloCode definition given to Neognathae by George Sangster and colleagues in 2022 is "the least inclusive crown clade containing Gallus gallus and Passer domesticus". [10]
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] ...
العربية; Aragonés; Asturianu; Azərbaycanca; 閩南語 / Bân-lâm-gú; Башҡортса; Беларуская (тарашкевіца) Български
Nearly all living birds belong to the subclass Neognathae or "new jaws". With their keeled sternum (breastbone), unlike the ratites, they are known as carinatae.
Neognathae. Pangalloanserae (fowl) Neoaves; ... for example, may have in common specific adaptations suited to their environment that were developed independently.
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.
The Galliformes are a clade of bird species of cosmopolitan distribution that, with the Anseriformes, belong to the branch Galloanserae.The group have more than 270 living species and includes the megapodes, chachalacas, guans, curassows, turkeys, grouse, New World quails, pheasants, partridges and guineafowl.
The African ostrich is the largest living ratite. A large member of this species can be nearly 2.8 metres (9 ft 2 in) tall, weigh as much as 156 kilograms (344 lb), [18] and can outrun a horse.