With their closest relatives , the Maluridae ( Australian fairy-wrens ) , Pardalotidae ( pardalotes ) , and Acanthizidae ( thornbills , Australian warblers , scrubwrens , etc. ) they comprise the superfamily Meliphagoidea and originated early in the evolutionary history of the oscine passerine radiation .
They are part of the superfamily Meliphagoidea which includes their closest relatives , the Maluridae ( Australian fairy-wrens ) , Pardalotidae ( pardalotes ) , and Acanthizidae ( thornbills , Australian warblers , scrubwrens , etc. ) .