prokaryotes - bacteria see Domain Bacteria Woese et al. 1990
   Domain "Bacteria" Woese et al. 1990
     Phylum "Firmicutes" corrig. Gibbons and Murray 1978 (Approved Lists 1980)
       Class Clostridia Rainey 2010
         Order Clostridiales Prévot 1953 (Approved Lists 1980)
           Family Lachnospiraceae Rainey 2010
             01 Genus Acetatifactor Pfeiffer et al. 2013
             02 Genus Acetitomaculum Greening and Leedle 1995
             03 Genus Anaerostipes Schwiertz et al. 2002
             04 Genus Butyrivibrio Bryant and Small 1956 (Approved Lists 1980)
             05 Genus Catonella Moore and Moore 1994
             06 Genus Cellulosilyticum Cai and Dong 2010
             07 Genus Coprococcus Holdeman and Moore 1974 (Approved Lists 1980)
             08 Genus Dorea Taras et al. 2002
             09 Genus Eisenbergiella Amir et al. 2014
             10 Genus Herbinix Koeck et al. 2015
             11 Genus Hespellia Whitehead et al. 2004
             12 Genus Johnsonella Moore and Moore 1994
             13 Genus Lachnoanaerobaculum Hedberg et al. 2012
             14 Genus Lachnobacterium Whitford et al. 2001
             15 Genus Lachnospira Bryant and Small 1956 (Approved Lists 1980)
             16 Genus Marvinbryantia Wolin et al. 2008
             17 Genus Mobilitalea Podosokorskaya et al. 2014
             18 Genus Moryella Carlier et al. 2007
             19 Genus Murimonas Kläring et al. 2015
             20 Genus Oribacterium Carlier et al. 2004
             21 Genus Parasporobacterium Lomans et al. 2004
             22 Genus Pseudobutyrivibrio van Gylswyk et al. 1996
             23 Genus Robinsoniella Cotta et al. 2009
             24 Genus Roseburia Stanton and Savage 1983
             25 Genus Shuttleworthia Downes et al. 2002
             26 Genus Sporobacterium Mechichi et al. 1999
             27 Genus Stomatobaculum Sizova et al. 2013
             28 Genus Syntrophococcus Krumholz and Bryant 1986