Olsenella gallinarum Zenner et al. 2021 Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Actinobacteria (sic) Goodfellow 2021 non Actinobacteria Stackebrandt et al. 1997 Actinomycetota corrig. Goodfellow 2021 Actinobacteriota corrig. Goodfellow 2021 Coriobacteriia König 2013 emend. Gupta et al. 2013 Coriobacteridae Stackebrandt et al. 1997 emend. Zhi et al. 2009 Coriobacteriales Stackebrandt et al. 1997 emend. Gupta et al. 2013 Atopobiaceae Gupta et al. 2013 emend. Zgheib et al. 2021 Olsenella Dewhirst et al. 2001 emend. Kraatz et al. 2011 Olsenella gallinarum Zenner et al. 2021 Olsenella Dewhirst et al. 2001 emend. Kraatz et al. 2011 Olsenella scatoligenes Li et al. 2015 Olsenella profusa Dewhirst et al. 2001 emend. Kraatz et al. 2011 Olsenella sp. None 2015 Olsenella uli (Olsen et al. 1991) Dewhirst et al. 2001 emend. Li et al. 2015 Olsenella umbonata Kraatz et al. 2011 emend. Nouioui et al. 2018 Olsenella faecalis Han et al. 2019 Olsenella porci Wylensek et al. 2021 Olsenella massiliensis Zgheib et al. 2021 Olsenella phocaeensis Zgheib et al. 2021 Olsenella urininfantis Zgheib et al. 2021 Olsenella gallinarum Zenner et al. 2021 Thermophilibacter gallinarum (Zenner et al. 2021) Lu et al. 2021 Oren A. Garrity G.M. Validation List No. 201. List of new names and new combinations previously effectively, but not validly, published 2021 71 9 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 Zenner C. Hitch T.C.A. Riedel T. Wortmann E. Tiede S. Buhl E.M. Abt B. Neuhaus K. Velge P. Overmann J. Kaspers B. Clavel T. Early-Life Immune System Maturation in Chickens Using a Synthetic Community of Cultured Gut Bacteria. 2021 6 3 mSystems mSystems 2379-5077 10.1128/mSystems.01300-20 34006629 Zenner C. Hitch T.C.A. Riedel T. Wortmann E. Tiede S. Buhl E.M. Abt B. Neuhaus K. Velge P. Overmann J. Kaspers B. Clavel T. Early-Life Immune System Maturation in Chickens Using a Synthetic Community of Cultured Gut Bacteria. 2021 6 3 mSystems mSystems 2379-5077 10.1128/mSystems.01300-20 34006629