Rheidae

Rheidae /ˈriːɪdiː/ is a family of flightless ratite birds which first appeared in the Paleocene.^[2] It is today represented by the sole living genus Rhea, but also contains several extinct genera.^[3]

Rheids Temporal range: Paleocene–Holocene 56–0 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Greater rhea, Rhea americana
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Infraclass:	Palaeognathae
Clade:	Notopalaeognathae
Order:	Rheiformes
Family:	Rheidae Bonaparte, 1853[1]
Type species
Rhea americana Linnaeus, 1758
Genus
†Heterorhea Rovereto 1914 †Hinasuri Tambussi 1995 Rhea Brisson 1760
Synonyms
Rheinae Bonaparte 1849

Taxonomy

Order Rheiformes (Forbes, 1884) Furbringer, 1888 [Rheimorphae Bonaparte, 1849; Rheae Forbes 1884]^{[4][5][6][7][8]}

• Family †Opisthodactylidae Ameghino 1895
  • Genus ?†Diogenornis de Alvarenga 1983 (Late Paleocene) – possibly a member of Casuariiformes instead.^[9]
  • Genus †Opisthodactylus Ameghino 1895 (Miocene) – rheid?
• Family Rheidae (Bonaparte 1849) Bonaparte, 1853
  • Genus †Heterorhea Rovereto 1914 (Pliocene)
  • Genus †Hinasuri Tambussi 1995
  • Genus Rhea Brisson 1760