Phycisphaerales Fukunaga et al. 2010 Phycisphaerales Fukunaga et al. 2010 Phycisphaera Fukunaga et al. 2010 Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Planctomycetes (sic) Garrity and Holt 2021 Planctomycetota corrig. Garrity and Holt 2021 Phycisphaerae Fukunaga et al. 2010 Phycisphaerales Fukunaga et al. 2010 Phycisphaerae Fukunaga et al. 2010 Tepidisphaerales Kovaleva et al. 2014 Sedimentisphaerales Spring et al. 2018 Phycisphaeraceae Fukunaga et al. 2010 Fukunaga Y. Kurahashi M. Sakiyama Y. Ohuchi M. Yokota A. Harayama S. Phycisphaera mikurensis gen. nov., sp. nov., isolated from a marine alga, and proposal of Phycisphaeraceae fam. nov., Phycisphaerales ord. nov. and Phycisphaerae classis nov. in the phylum Planctomycetes 2009 55 267 275 The Journal of General and Applied Microbiology J Gen Appl Microbiol 0022-1260 1349-8037 10.2323/jgam.55.267 19700920 Fukunaga Y. Kurahashi M. Sakiyama Y. Ohuchi M. Yokota A. Harayama S. Phycisphaera mikurensis gen. nov., sp. nov., isolated from a marine alga, and proposal of Phycisphaeraceae fam. nov., Phycisphaerales ord. nov. and Phycisphaerae classis nov. in the phylum Planctomycetes 2009 55 267 275 The Journal of General and Applied Microbiology J Gen Appl Microbiol 0022-1260 1349-8037 10.2323/jgam.55.267 19700920 Euzéby J. Validation List No. 131. List of new names and new combinations previously effectively, but not validly, published 2010 60 1 1 2 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.021204-0