Opisthocomidae

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

Opisthocomids
Temporal range: Late Eocene - Recent, Possible an early origin based on molecular clock
Hoatzin (Opisthocomus hoazin)
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Clade: Passerea
Order: Opisthocomiformes
L'Herminier, 1837
Family: Opisthocomidae
Swainson, 1837
Genera
Synonyms
  • Foratidae Olson 1992
  • Hoazinoididae Rasmussen 1997
  • Onychopterygidae Cracraft 1971
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