Opisthodactylus

Opisthodactylus; Temporal range: Early-Late Miocene (Colhuehuapian-Montehermosan); ~20–3 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Infraclass:	Palaeognathae
Order:	Rheiformes
Family:	Rheidae
Genus:	†Opisthodactylus; Ameghino 1891
Species
	† O. patagonicus Ameghino 1891 (type); † O. horacioperezi Agnolin & Chafrat 2015; † O. kirchneri Noriega et al. 2017;

Opisthodactylus is an extinct genus of rhea from the Early to Middle Miocene and and the Late Miocene (Montehermosan) of Argentina. Three species are described: the type species, O. patagonicus, O. kirchneri and O. horacioperezi. The species O. kirchneri was described in 2017 by Noriega et al.^[1] Fossils of O. horacioperezi were found together with fossils of .^[2]

References[]

^ Opisthodactylus at Fossilworks.org
^ Federico L. Agnolin and Pablo Chafrat (2015). "New fossil bird remains from the Chichinales Formation (Early Miocene) of northern Patagonia, Argentina". Annales de Paléontologie. 101 (2): 87–94. doi:10.1016/j.annpal.2015.02.001.

Opisthodactylus

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