Oscillospira guilliermondii Chatton and Pérard 1913 (Approved Lists 1980) Oscillospira guilliermondii Chatton and Pérard 1913 (Approved Lists 1980) Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Firmicutes (sic) Gibbons and Murray 2021 Bacillota corrig. Gibbons and Murray 2021 Firmacutes (sic) Gibbons and Murray 2021 Clostridia Rainey 2010 Eubacteriales Buchanan 1917 (Approved Lists 1980) emend. Tindall 2019 Oscillospiraceae Peshkoff 1940 (Approved Lists 1980) emend. Tindall 2019 Oscillospira Chatton and Pérard 1913 (Approved Lists 1980) Oscillospira guilliermondii Chatton and Pérard 1913 (Approved Lists 1980) Oscillospira Chatton and Pérard 1913 (Approved Lists 1980) Oscillospira guilliermondii Chatton and Pérard 1913 (Approved Lists 1980) Chatton E. Pérard C. Schizophytes du caecum du cobaye. I. Oscillospira guilliermondi n.g., n.sp. 1913 74 1159 1162 Comptes Rendus des Séances de la Société de Biologie et de ses Filiales (Paris) C R Seances Soc Biol Fil 0037-9026 Chatton E. Pérard C. Schizophytes du caecum du cobaye. I. Oscillospira guilliermondi n.g., n.sp. 1913 74 1159 1162 Comptes Rendus des Séances de la Société de Biologie et de ses Filiales (Paris) C R Seances Soc Biol Fil 0037-9026 Skerman V.B.D. McGowan V. Sneath P.H.A. Approved Lists of Bacterial Names 1980 30 1 225 420 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-30-1-225