"Chordata" . . "Animalia" . . . . "Sooty Antbird" . "Myrmeciza" . "Thamnophilidae" . "(Sclater and Salvin 1868)" . "Passeriformes" . . . "Aves" . . . . . . . . "Myrmeciza fortis" . "Myrmeciza fortis (Sclater and Salvin 1868)" . .