Order Rheiformes (bird)

Aves - Rheiformes

Parent taxon: Palaeognathae according to J. F. Clements et al. 2017

See also Carroll 1988, Livezey and Zusi 2007 and Mayr 2022

Sister taxa: Aepyornithiformes, Ambiortiformes, Crypturi, Eremopezidae, Lithornidae, Lithornithidae, Medioolithidae, Palaeocursornithiformes, Patagopterygiformes, Ratitae, Remiornithidae, Remiornithiformes, Struthioniformes

Subtaxa: Rheidae

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Ecology: ground dwelling carnivore

Distribution:

• Quaternary of Argentina (11 collections), Bolivia (1), Brazil (1)

• Montehermosan of Argentina (3)

• Neogene of Argentina (1)

• Miocene of Argentina (11)

• Eocene of Brazil (1)

Total: 29 collections including 32 occurrences

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