Ahrensia sp. None 2015 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 Alphaproteobacteria Garrity et al. 2006 Hyphomicrobiales Douglas 1957 (Approved Lists 1980) emend. Hördt et al. 2020 Ahrensiaceae Hördt et al. 2020 Ahrensia Uchino et al. 1999 emend. Liu et al. 2016 Ahrensia sp. None 2015 Ahrensia Uchino et al. 1999 emend. Liu et al. 2016 Ahrensia kielensis (ex Ahrens and Rheinheimer 1967) Uchino et al. 1999 emend. Liu et al. 2016 Ahrensia marina Liu et al. 2016 Ahrensia sp. None 2015 Liolios K. Chen I.M. Mavromatis K. Tavernarakis N. Hugenholtz P. Markowitz V.M. Kyrpides N.C. The Genomes On Line Database (GOLD) in 2009: status of genomic and metagenomic projects and their associated metadata 2010 38 D346 354 Nucleic Acids Research Nucleic Acids Res. 0305-1048 1362-4962 10.1093/nar/gkp848 19914934 No reference is available 2015