After Sibley & Monroe, 1990, with Finnish vernacular names from Lokki, Jännes & Nikander, 1992

<==o Cyornis ()? [19]
   |-- C. sanfordi (minahassansinisieppo)
   |-- C. hoevelli (celebesinsinisieppo)
   |-- C. hyacinthinus (timorinsinisieppo)
   |-- C. concretus (viirupyrstösieppo)
   |-- C. ruckii (malesiansinisieppo)
   |-- C. herioti (luzoninsinisieppo)
   |-- C. hainanus (bambusinisieppo)
   |-- C. pallipes (ghatinsinisieppo)
   |-- C. poliogenys (himalajansinisieppo)
   |-- C. unicolor (kobolttisieppo)
   |-- C. rubeculoides (sinikurkkusieppo)
   |-- C. banyumas (vuorisinisieppo)
   |-- C. lemprieri (Palawan Blue Flycatcher)
   |-- C. superbus (borneonsinisieppo)
   |-- C. caerulatus (sundansinisieppo)
   |-- C. turcosus (turkoosikurkkusieppo)
   |-- C. tickelliae (puistosinisieppo)
   |-- C. rufigaster (mangrovesinisieppo)
   `--o C. omissus (Sulawesi Blue Flycatcher)
      |-- C. o. omissus (Sulawesi Blue Flycatcher)
      `-- C. o. djampeanus (Tanahjampea Blue Flycatcher)

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