procaryotes Domain Bacteria Woese et al. 1990 Phylum Chloroflexi Garrity and Holt 2001 Class "Chloroflexi" Castenholz 2001 nom. inval. see Class Chloroflexia Gupta et al. 2013 1 Order "Chloroflexales" Castenholz 2001 nom. nud. see Order Chloroflexales Gupta et al. 2013 2 Order "Herpetosiphonales" Castenholz 2001 nom. nud. see Order Herpetosiphonales Gupta et al. 2013