Heliothrix Pierson et al. 1986 Heliothrix oregonensis Pierson et al. 1986 Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Chloroflexi (sic) Garrity and Holt 2021 emend. Hugenholtz and Stackebrandt 2004 non Chloroflexi Gupta et al. 2013 Chloroflexota corrig. Garrity and Holt 2021 emend. Hugenholtz and Stackebrandt 2004 Chloroflexia corrig. Gupta et al. 2013 Chloroflexi (sic) Gupta et al. 2013 non Chloroflexi Garrity and Holt 2021 Chloroflexales Boone and Castenholz 2013 Roseiflexineae Gupta et al. 2013 Roseiflexaceae Gupta et al. 2013 Heliothrix Pierson et al. 1986 Roseiflexaceae Gupta et al. 2013 Roseiflexus Hanada et al. 2002 Heliothrix oregonensis Pierson et al. 1986 Pierson B.K. Giovannoni S.J. Stahl D.A. Castenholz R.W. Heliothrix oregonensis, gen. nov., sp. nov., a phototrophic filamentous gliding bacterium containing bacteriochlorophyll a. 1985 142 164 167 Archives of Microbiology Arch Microbiol 0302-8933 1432-072X 10.1007/BF00447061 2412519