Procaryotic Genera Domain "Bacteria" Woese et al. 1990 Phylum Verrucomicrobia Garrity and Holt 2001 [monotypic] see Phylum Verrucomicrobia Hedlund 2011 Class Verrucomicrobiae Hedlund et al. 1998 [monotypic] Order Verrucomicrobiales Ward-Rainey et al. 1996 1 Family Verrucomicrobiaceae Ward-Rainey et al. 1996 2 Family "Xiphinematobacteriaceae" [monotypic]