Actinobacillus equuli haemolyticus Christensen et al. 2002 Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Proteobacteria (sic) Garrity et al. 2021 Pseudomonadota corrig. Garrity et al. 2021 Alphaproteobacteriota (sic) Garrity et al. 2021 Gammaproteobacteria Garrity et al. 2005 emend. Williams and Kelly 2013 Pasteurellales Garrity et al. 2005 Pasteurellaceae Pohl 1981 Actinobacillus Brumpt 1910 emend. Phillips 1974 (Approved Lists 1980) Actinobacillus equuli (van Straaten 1918) Haupt 1934 (Approved Lists 1980) Actinobacillus equuli haemolyticus Christensen et al. 2002 Actinobacillus equuli (van Straaten 1918) Haupt 1934 (Approved Lists 1980) Actinobacillus equuli equuli (van Straaten 1918) Christensen et al. 2002 Actinobacillus equuli haemolyticus Christensen et al. 2002 Christensen H. Bisgaard M. Olsen J.E. Reclassification of equine isolates previously reported as Actinobacillus equuli, variants of A. equuli, Actinobacillus suis or Bisgaard taxon 11 and proposal of A. equuli subsp. equuli subsp. nov. and A. equuli subsp. haemolyticus subsp. nov. 2002 52 5 1569 1576 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.01637-0 12361259 Christensen H. Bisgaard M. Olsen J.E. Reclassification of equine isolates previously reported as Actinobacillus equuli, variants of A. equuli, Actinobacillus suis or Bisgaard taxon 11 and proposal of A. equuli subsp. equuli subsp. nov. and A. equuli subsp. haemolyticus subsp. nov. 2002 52 5 1569 1576 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.01637-0 12361259