procaryotes Count: - Domain Bacteria Woese et al. 1990 Count: [g] 23p;31c;73o;195f;935g Phylum Nitrospirae Garrity and Holt 2001 Count: [g] 1c;1o;1f;4g Class "Nitrospira" 2001 Count: [g] 1o;1f;4g Order "Nitrospirales" 2001 Count: [g] 1f;4g Family "Nitrospiraceae" 2001 Count: [g] 4g 1 Genus Nitrospira Watson et al. 1986 Count: - 2 Genus Leptospirillum (ex Markosyan 1972) Hippe 2000 Count: - 3 Genus "Magnetobacterium" Murray and Stackebrandt 1995 Count: - 4 Genus Thermodesulfovibrio Henry et al. 1994 Count: -