A tropical American bird of the tyrant flycatcher family, with a wide flat bill and mainly olive-green plumage.
Genera Ramphotrigon and Rhynchocyclus, family Tyrannidae: several species.
In all most-parsimonious trees the flatbills and tody-tyrants are basal to a large clade containing the majority of tyrannids plus, in some most-parsimonious trees, cotingids and piprids.