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biformes is one of the most diverse non-passerine clades of neoavians, and its origins are in the Cretaceous and the result of a rapid diversification at the end of the K-Pg boundary. Recent whole genome analyses have found the columbiformes to be closely related to the cuckoos (Cuculiformes), forming a group that is the sister clade of a group conformed by the sandgrouses (Pterocliformes) and mesites (Mesitornithiformes).
Taxonomy and systematics See also: List of Columbidae genera and List of Columbidae species The name 'Columbidae' for the family was introduced by the English zoologist William Elford Leach in a guide to the contents of the British Museum published in 1820. Columbidae is the only living family in the order Columbiformes. The sandgrouse (Pteroclidae) were formerly placed here, but were moved to a separate order, Pterocliformes, based on anatomical differences (such as the inability to drink by "sucking" or "pumping").
The Columbidae are usually divided into five subfamilies, probably inaccurately. For example, the American ground and quail doves (Geotrygon), which are usually placed in the Columbinae, seem to be two distinct subfamilies. The order presented here follows Baptista et al. (1997), with some updates.
The arrangement of genera and naming of subfamilies is in some cases provisional because analyses of different DNA sequences yield results that differ, often radically, in the placement of certain (mainly Indo-Australia