Ramphastides is an infraorder of the order Piciformes that includes toucans and barbets. Formerly, the barbets have been classified in a single family, the Capitonidae.LL Short, JFM Horne (2002) Family Capitonidae (barbets). In del Hoyo J., Elliott A. & Christie D.A. (2004) Handbook of the Birds of the World. Volume 7. Jamacars to Woodpeckers Lynx Edicions, Barcelona However, this has turned out to be paraphyletic about toucans, which resulted in the Capitonidae being split into several families.Sibley, Charles Gald & Ahlquist, Jon Edward (1990): Phylogeny and classification of birds. Yale University Press, New Haven, Conn.Moyle, R. G. (2004). Phylogenetics of barbets (Aves: Piciformes) based on nuclear and mitochondrial DNA sequence data. Molecular Phylogenetics and Evolution, 30(1), 187-200.
Systematics The Ramphastides contain five extant families. Sometimes, they are treated as the superfamily Ramphastoidea.Simpson, S. F., & Cracraft, J. (1981). The phylogenetic relationships of the Piciformes (Class Aves). The Auk, 481-494.
Infraorder Ramphastides Megalaimidae - Asian barbets Lybiidae - African barbets Capitonidae - New World barbets Semnornithidae - toucan-barbets Ramphastidae - toucans
References
External links Tree of Life Piciformes