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.[1] However, this has turned out to be paraphyletic with regard to toucans, which resulted in the Capitonidae being split into several families.[2][3]
^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 ISBN84-87334-37-7
^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.
^Simpson, S. F., & Cracraft, J. (1981). The phylogenetic relationships of the Piciformes (Class Aves). The Auk, 481-494.
