Opisthocomidae

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Opisthocomids Temporal range: Late Eocene - Recent, Late Eocene–0 PreЄ Є O S D C P T J K Pg N
Hoatzin (Opisthocomus hoazin)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Clade:	Inopinaves
Order:	Opisthocomiformes L'Herminier, 1837
Family:	Opisthocomidae Swainson, 1837
Type species
Phasianus hoazin Muller, 1776
Genera
?Foro † Hoazinavis † Hoazinoides † Namibiavis † Opisthocomus Onychopteryx † Protoazin †
Synonyms
?Foratidae Hoazinoididae ?Onychopterygidae

Opisthocomidae is a group of birds, the only named family within the order Opisthocomiformes. The only living representative is thehoatzin (Opisthocomus hoazin) which lives in the Amazon and the Orinoco delta in South America. Several fossil species have been identified, including one from Africa^[1] and one from Europe.^[2]