Opisthodactylus

Opisthodactylus; Temporal range: Miocene
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Rheiformes
Family:	Rheidae
Genus:	Opisthodactylus; Ameghino, 1891
Species
	†Opisthodactylus patagonicus; †Opisthodactylus horacioperezi;

Opisthodactylus is an extinct genus of rhea from the Miocene of Argentina. Two species are known: the type species, Opisthodactylus patagonicus, and Opisthodactylus horacioperezi.^[1]

References

^ Federico L. Agnolin and Pablo Chafrat (2015). "New fossil bird remains from the Chichinales Formation (Early Miocene) of northern Patagonia, Argentina". Annales de Paléontologie. in press. doi:10.1016/j.annpal.2015.02.001.

The Origin and Evolution of Birds by Alan Feduccia

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[ChichinalesFmbirds-1] Federico L. Agnolin and Pablo Chafrat (2015). "New fossil bird remains from the Chichinales Formation (Early Miocene) of northern Patagonia, Argentina". Annales de Paléontologie. in press. doi:10.1016/j.annpal.2015.02.001.

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