. . . "Margarornis bellulus Nelson, 1912" . "Margarornis bellulus" . "Margarornis" . . . "Margarornis bellulus Nelson, 1912" . . . . . "Animalia" . . "Margarornis bellulus Nelson, 1912" . . . . . . . . . . . . "Passeriformes" . "Beautiful Treerunner" . . "560995" . . "bellulus" . "Chordata" . . . "Aves" . "http://lod.geospecies.org/ses/tLk5V" . . "Nelson, 1912" . . . . . "Furnariidae" . "2010-07-15T12:42:09-0500" .