Parent: Tyrannidae (Tyrant flycatchers)

└─ Rhynchocyclus

└─── Rhynchocyclus brevirostris (Eye-ringed flatbill)

└─── Rhynchocyclus fulvipectus (Fulvous-breasted flatbill)

└─── Rhynchocyclus olivaceus (Olivaceous flatbill)

└─── Rhynchocyclus pacificus (Pacific flatbill)