Parent: Ramphomicron

└─ Ramphomicron microrhynchum (Purple-backed thornbill)

└─── Ramphomicron microrhynchum albiventre

└─── Ramphomicron microrhynchum andicola

└─── Ramphomicron microrhynchum bolivianum

└─── Ramphomicron microrhynchum microrhynchum