Family Rheidae Bonaparte 1849 (rhea)
PaleoDB taxon number: 39283
Parent taxon: Rheiformes according to J. F. Clements et al. 2017
Sister taxa: none
Subtaxa: Diogenornis, Heterorhea, Hinasuri, Opisthodactylus, Protorhea, Rhea
Ecology: ground dwelling herbivore