Ratite
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Ratites | |
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Soothren Cassowary (Casuarius casuarius) | |
Scientific classification ![]() | |
Kinrick: | Animalia |
Phylum: | Chordata |
Cless: | Aves |
Superorder: | Palaeognathae |
Order: | Struthioniformes Latham, 1790[1] |
Faimilies | |
Struthionidae ostrich | |
Synonyms | |
Gallinae Linnaeus, 1735[2] |
A ratite is ony o a diverse group o lairge, flichtless birds o the superorder Palaeognathae. Thare is still some controversy regardin the systematics involved. Some soorces state that Ratites are synonymous wi Struthioniformes,[4] while ither soorces state that Ratites are the same group, anly that the order Struthioniformes contains anly the Ostrich an possibly the Elephant Bird.[1][5] Ratites belang tae the modren bird superorder Palaeognathae which consists o ratites an tinamous (compare tae Neognathae).[6] Unlik ither flichtless birds, the ratites hae nae keel on thair sternum – hence the name frae the Laitin ratis (for raft). Wioot this tae anchor thair wing muscles, thay coud nae flee even if thay wur tae develop suitable wings.
Maist pairts o the umwhile Gondwana Supercontinent hae ratites, or did hae till the fairly recent past. Thair closest livin relatives are the tinamous o Sooth Americae.[7][8]
Some taxonomical seestems consider the various faimilies o ratites tae be orders, but the seestem uised here uises the order "Struthioniformes" tae refer tae aw ratites.
References
[eedit | eedit soorce]- ↑ a b Brands, Sheila (2008)
- ↑ a b c d e f g h i j k l m n o p Gray, George Robert (1863)
- ↑ a b c d e f Salvadori, Tomasso (1895)
- ↑ ITIS (1996)
- ↑ Harshman, J. & Brown, J.W. (2010)
- ↑ Phillips, Matthew (2010). "Tinamous and Moa Flock Together: Mitochondrial Genome Sequence Analysis Reveals Independent Losses of Flight among Ratites". Society of Systematic Biologists. 59 (1): 90–107. Unknown parameter
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suggested) (help) - ↑ Haddrath, O.; Baker A. (2001)
- ↑ Cooper, A.; Lalueza-Fox, C.; Anderson, S.; Rambaut, A.; Austin, J.; Ward, R. (2001)
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