[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990
     Phylum "Verrucomicrobia" Garrity and Holt 2001 see Phylum Verrucomicrobia Hedlund 2011
       Class Verrucomicrobiae Hedlund et al. 1998
         Order Verrucomicrobiales Ward-Rainey et al. 1996
           1 Family Verrucomicrobiaceae Ward-Rainey et al. 1996
           2 Family "Opitutaceae" Choo et al., 2007 see Family Opitutaceae Choo et al. 2007
           3 Family "Xiphinematobacteriaceae"