Incertae sedis 262 Haygood and Davidson 1997 Endobugula Haygood and Davidson 1997 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 Incertae sedis 261 Haygood and Davidson 1997 Incertae sedis 262 Haygood and Davidson 1997 Incertae sedis 261 Haygood and Davidson 1997 Endobugula Haygood and Davidson 1997 Haygood M.G. Davidson S.K. Small-subunit rRNA genes and in situ hybridization with oligonucleotides specific for the bacterial symbionts in the larvae of the bryozoan Bugula neritina and proposal of "Candidatus endobugula sertula". 1997 63 11 4612 6 Applied and Environmental Microbiology Appl Environ Microbiol 0099-2240 1098-5336 9361448