Domain Bacteria Woese et al. 1990 Phylum Bacteroidetes Garrity and Holt 2001 see Phylum Bacteroidetes Krieg et al. 2012 Class "Bacteroides" Castellani & Chalmers, 1919 emend. Shah & Collins, 1989 emend. Shah & Collins, 1989 see Class Bacteroidia Krieg et al., 2012 Order "Bacteroidales" Krieg 2012 see Order Bacteroidales Krieg 2012 Family "Rikenellaceae" Krieg et al., 2012 see Family Rikenellaceae Krieg et al. 2012 Genus Marinilabilia Nakagawa and Yamasato 1996 1 Genus Rikenella Collins et al. 1985