prokaryotes - bacteria see Domain Bacteria Woese et al. 1990 Domain "Bacteria" Woese et al. 1990 Phylum "Actinobacteria" Garrity and Holt 2001 Class Actinobacteria Stackebrandt et al. 1997 Order Bifidobacteriales Stackebrandt et al. 1997 [monotypic] Family Bifidobacteriaceae Stackebrandt et al. 1997 Genus Parascardovia Jian and Dong 2002