Struthioniformes
Struthioniformes
Order of birds
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! Struthioniformes
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! Scientific classification
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|Domain:
|Eukaryota
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|Kingdom:
|Animalia
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|Phylum:
|Chordata
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|Class:
|Aves
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|Infraclass:
|Palaeognathae
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|Order:
|Struthioniformes
Latham, 1790
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|- ! Families |- |
- †Palaeotididae
- †Geranoididae
- †Eogruidae
- †Ergilornithidae
- Struthionidae
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Struthioniformes is an order of birds with only a single extant family, Struthionidae, containing the ostriches. Several other extinct families are known, spanning across the Northern Hemisphere, from the Early Eocene to the early Pliocene, including a variety of flightless forms like the Paleotididae, Geranoididae, Eogruidae and Ergilornithidae, the latter two thought to be closely related to Struthionidae.