Pici is one of the two suborders of the order Piciformes and includes two infraorders Ramphastides (toucans and barbets) and Picides (honeyguides and woodpeckers). Members of this suborder are often called "true piciforms", as the jacamars of Galbulidae and puffbirds of Bucconidae (of the other piciform suborder Galbuli) were thought to be not closely related to toucans and woodpeckers, but instead to the order Coraciiformes. However, analysis of nuclear DNA in a 2003 study placed them as a sister group to the rest of the Piciformes, also showing that the groups had developed zygodactyl feet before separating. Per Ericson and colleagues, in analysing genomic DNA, confirmed that puffbirds and jacamars were sister groups and their place in Piciformes.
|Female Magellanic woodpecker, (Campephilus magellanicus)|
Meyer & Wolf, 1810
|Infraorders and families|
- Sibley, Charles Gald & Ahlquist, Jon Edward (1990): Phylogeny and classification of birds. Yale University Press, New Haven, Conn.
- Feduccia, Alan (1999). The Origin and Evolution of Birds. Yale University Press. p. 341. ISBN 9780300078619.
- Johansson, Ulf S. & Ericson, Per G.P. (2003). "Molecular support for a sister group relationship between Pici and Galbulae (Piciformes sensu Wetmore 1960" (PDF). Journal of Avian Biology. 34 (2): 185. doi:10.1034/j.1600-048X.2003.03103.x.
- Ericson, P. G. P.; Anderson, C. L.; Britton, T.; Elzanowski, A.; Johansson, U. S.; Källersjö, M.; Ohlson, J. I.; Parsons, T. J.; Zuccon, D.; Mayr, G. (2006). "Diversification of Neoaves: integration of molecular sequence data and fossils". Biology Letters. 2 (4): 543–547. doi:10.1098/rsbl.2006.0523. PMC 1834003. PMID 17148284.