Opisthocomidae

Opisthocomids; Temporal range: Late Eocene - Recent, Late Eocene–0 PreꞒ Ꞓ O S D C P T J K Pg N
	Hoatzin (Opisthocomus hoazin)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
(unranked):	Passerea
Order:	Opisthocomiformes; L'Herminier, 1837
Family:	Opisthocomidae; Swainson, 1837
Genera
	?†Foro; ?†Hoatzi; ?†Onychopteryx; †Hoazinoides; †Namibiavis; †Protoazin; †Hoazinavis; Opisthocomus;
Synonyms
	Foratidae Olson 1992; Hoazinoididae Rasmussen 1997; Onychopterygidae Cracraft 1971;

Opisthocomidae is a group 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^[1] and one from Europe.^[2]

Phylogeny

Based on the work of Mayr & De Pietri 2014.^[2]

†Namibiavis

†Protoazin

	†Hoazinavis

	Opisthocomus

Taxonomy

Family †Opisthocomidae Swainson 1837^[3]
- Genus ?†Foro Olson 1992 (mid-Eocene, USA) - cuculiform?
  - Species †Foro panarium Olson 1992
- Genus ?†Hoatzi Thomas 1996 (Eocene, Argentina)
  - Species †Hoatzi panarium Thomas 1996
- Genus ?†Onychopteryx Cracraft 1971 (Early Eocene of Argentina) – falconid? A nomen dubium
  - Species †Onychopteryx simpsoni Cracraft 1971
- Genus †Protoazin Mayr & De Pietri 2014 (late Eocene of France)
  - Species †Protoazin parisiensis Mayr & De Pietri 2014
- Genus †Namibiavis Mourer-Chauviré 2003 (Middle Miocene of Namibia)
  - Species †Namibiavis senutae Mourer-Chauviré 2003
- Genus †Hoazinavis Alvarenga, Mayr & Mourer-Chauviré 2011 (Late Oligocene and Early Miocene of Brazil)
  - Species †Hoazinavis lacustris Alvarenga, Mayr & Mourer-Chauviré 2011
- Genus †Hoazinoides Miller 1953 (middle Miocene of Colombia)
  - Species †Hoazinoides magdalenae Miller 1953
- Genus Opisthocomus Illiger 1811
  - Species Opisthocomus hoazin (Müller 1776) Illiger 1811 [Phasianus hoazin Müller 1776]

References

^ Mayr, G., Alvarenga, H. and Mourer-Chauviré, C. (2011). "Out of Africa: Fossils shed light on the origin of the hoatzin, an iconic Neotropic bird." Naturwissenschaften, doi:10.1007/s00114-011-0849-1 PMID 21964974
^ ^a ^b Gerald Mayr and Vanesa L. De Pietri (2014). "Earliest and first Northern Hemispheric hoatzin fossils substantiate Old World origin of a "Neotropic endemic"". Naturwissenschaften. in press. doi:10.1007/s00114-014-1144-8.
^ Mikko's Phylogeny Archive [1] Haaramo, Mikko (2007). "Primitive Land-bird Assemblage". Retrieved 30 December 2015.

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[1] Mayr, G., Alvarenga, H. and Mourer-Chauviré, C. (2011). "Out of Africa: Fossils shed light on the origin of the hoatzin, an iconic Neotropic bird." Naturwissenschaften, doi:10.1007/s00114-011-0849-1 PMID 21964974

[Protoazins-2] Gerald Mayr and Vanesa L. De Pietri (2014). "Earliest and first Northern Hemispheric hoatzin fossils substantiate Old World origin of a "Neotropic endemic"". Naturwissenschaften. in press. doi:10.1007/s00114-014-1144-8.

[mikko-3] Mikko's Phylogeny Archive [1] Haaramo, Mikko (2007). "Primitive Land-bird Assemblage". Retrieved 30 December 2015.

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