Opisthocomidae

== Translingual == === Etymology === Opisthocomus +‎ -idae === Proper noun === Opisthocomidae A taxonomic family within the order Opisthocomiformes – the hoatzin and extinct relatives, of distant, but highly uncertain relationship to birds of other orders. ==== Hyponyms ==== (family): Opisthocomus – only extant genus === References === Opisthocomidae on Wikipedia.Wikipedia Opisthocomidae on Wikispecies.Wikispecies Category:Opisthocomus hoazin on Wikimedia Commons.Wikimedia Commons Opisthocomidae at Integrated Taxonomic Information System. Opisthocomidae at National Center for Biotechnology Information Opisthocomidae at Avian Taxonomy in Flux “Opisthocomidae”, in Paleobiology Database, 2026 Gill, F.; Wright, M. (2006), Birds of the World: Recommended English Names, Princeton University Press, →ISBN