Rheiformes
Also known as Rhea
Rheiformes is an order that contains the family Rheidae (rheas). It is in the infraclass Paleognathae, which contains all ratites. Extant members are found in South America. While the IOC World Bird List and the Clements Checklist categorise Rheiformes as its own order, the BirdLife Data Zone includes rheas, along with ostriches, tinamous, cassowaries, emu, and kiwis, in the order Struthioniformes. Of the two extant species of rheas recognized by the IUCN Red List, , Rhea americana is listed as near threatened, while Rhea pennata is listed as least concern. From 2014 to 2022, the IUCN recognis
Species
ORDER
- KingdomAnimalia
- PhylumChordata
- ClassAves
- OrderRheiformes
美洲鸵鸟目（学名：Rheiformes）是鸟纲的一目，仅1科1属2种，即美洲鸵鸟和美洲小鸵。分布于美洲，为美洲最大的鸟类，体高约1.6米。群居。栖息于平原地带。 美洲鸵鸟目（Rheiformes） 美洲鸵鸟科（Rheidae） 美洲鸵鸟属（Rhea） 美洲鸵鸟（Rhea americana ） 美洲小鸵（Rhea pennata )
via GBIF
Research
129 papers- Evolution of bird sex chromosomes: a cytogenomic approach in Palaeognathae species.BMC ecology and evolution · 2024
- Genetic diversity of Chlamydia among captive birds from central Argentina.Avian pathology : journal of the W.V.P.A · 2015
- Gastrointestinal Parasites in Captive Animals at the Rio de Janeiro Zoo.Acta parasitologica · 2020
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Article
2 sectionsContents
- Extant species summary
- References
Rheiformes is an order that contains the family Rheidae (rheas). It is in the infraclass Paleognathae, which contains all ratites. Extant members are found in South America. While the IOC World Bird List and the Clements Checklist categorise Rheiformes as its own order, the BirdLife Data Zone includes rheas, along with ostriches, tinamous, cassowaries, emu, and kiwis, in the order Struthioniformes. Of the two extant species of rheas recognized by the IUCN Red List, , Rhea americana is listed as near threatened, while Rhea pennata is listed as least concern. From 2014 to 2022, the IUCN recognised Rhea tarapacensis as a separate species, and listed it as near threatened in its last assessment in 2020; in 2022, it was again recognised as a subspecies of R. pennata.
Today, the order is represented by the sole living genus Rhea, though it contains 4-5 genera in total depending on the affiliation of the extinct genus Diogenornis. The taxonomy of the order is as follows: