[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990
     Phylum Firmicutes corrig. Gibbons and Murray 1978 (Approved Lists 1980)
       Class "Bacilli" Garrity et al. 2001 nom. ined. see Class Bacilli Ludwig et al. 2010
         Order Bacillales Prévot 1953 (Approved Lists 1980)
           Family "Staphylococcaceae" Schleifer & Bell, 2010 see Family Staphylococcaceae Schleifer and Bell 2010
             Genus Gemella Berger 1960 (Approved Lists 1980)
               Gemella haemolysans (Thjøtta and Bøe 1938) Berger 1960 (Approved Lists 1980)