Alysiella
Aquaspirillum
Catenococcus
Chromobacterium
Eikenella
Formivibrio
Iodobacter
Kingella
Microvirgula
Neisseria
Prolinoborus
Simonsiella
Vitreoscilla
Vogesella Scientific classification or biological classification refers to how biologists group and categorize extinct and living species of organisms. ... Phyla/Divisions Actinobacteria Aquificae Bacteroidetes/Chlorobi Chlamydiae/Verrucomicrobia Chloroflexi Chrysiogenetes Cyanobacteria Deferribacteres Deinococcus_Thermus Dictyoglomi Fibrobacteres/Acidobacteria Firmicutes Fusobacteria Gemmatimonadetes Nitrospirae Omnibacteria Planctomycetes Proteobacteria Spirochaetes Thermodesulfobacteria Thermomicrobia Thermotogae Bacteria (singular, bacterium) are a major group of living organisms. ... Orders Alpha Proteobacteria    Caulobacterales - e. ... Neisseria is a genus of bacteria, included among the proteobacteria, a large group of gram-negative forms. ...