New pine birds
| New pine birds | ||||||||||||
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clockwise: mandarin duck , white stork , black- browed albatross , black kite |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Neognathae | ||||||||||||
| Pycraft , 1900 |
The new pine birds (Neognathae) form one of the two subclasses of birds and comprise the majority of bird diversity with around 9,000 species , including the passerine birds with around 5,700 species, see also systematics of birds .
The most important feature that distinguishes them from the ancient jaw birds (Palaeognathae) is the structure of the palate: New jaw birds lack the stiffening of the so-called "pterygoid-palatinum complex" (PPC), a bone configuration that consists of wingbones (pterygoid), palatine bone (palatinum) and Ploughshare (vomer) consists. Unlike the Palaeognathae there is also but not a particularly outstanding characteristic: there are also non-flying birds such as the inside of neognathae addition to flying birds penguins , which the parrots counting kakapo or in their own family standing Kagus . The largest new-jawed bird is the Andean condor with a length of up to 1.30 meters and a wingspan of up to 3.20 meters.
The origins of modern birds go back to the Cretaceous. In March 2020, Belgian scientists described a dove-sized 66.7 million year old fossil bird ( Asteriornis maastrichtensis ) that shows features of geese and chickens.
supporting documents
- ^ Field, Daniel J .; Benito, Juan; Chen, Albert; Hunt, John WM; Ksepka, Daniel T. (March 18, 2020). Late Cretaceous neornithine from Europe illuminates the origins of crown birds . Nature. 579 (7799): 397-401. doi: 10.1038 / s41586-020-2096-0. ISSN 1476-4687.
Web links
- Mindell, David P. & Joseph W. Brown. 2005. Neornithes. Modern birds. in The Tree of Life Web Project