Class Proteobacteria

Warning: In the List of Prokaryotic names with Standing in Nomenclature, an arrow () only indicates the sequence of valid publication of names and does not mean that the last name in the sequence must be used (see: Introduction).

Classification (Warning: see also the file "Classification of prokaryotes: Introduction").

For a detailed description of this taxon see Bergey’s Manual of Systematics of Archaea and Bacteria (BMSAB).


Proteobacteria Stackebrandt et al. 1988, classis nov.
Type order: no type order designated.
Etymology: Gr. n. Proteus, a Greek god of the sea, capable of assuming many different shapes; Gr. n. baktêria, staff, cane; suff. -ia, ending to denote a class; N.L. neut. pl. n. Proteobacteria, protean group of bacteria of diverse properties despite a common ancestry.
Valid publication: STACKEBRANDT (E.), MURRAY (R.G.E.) and TRÜPER (H.G.): Proteobacteria classis nov., a name for the phylogenetic taxon that includes the "purple bacteria and their relatives". Int. J. Syst. Bacteriol., 1988, 38, 321-325.
Original article in IJSEM Online

Note: According to Rules 15, 22 and 27(3), the class Proteobacteria is illegitimate because it was proposed without the designation of a nomenclatural type.
Reference: EUZÉBY (J.P.) and TINDALL (B.J.): Nomenclatural type of orders: corrections necessary according to Rules 15 and 21a of the Bacteriological Code (1990 Revision), and designation of appropriate nomenclatural types of classes and subclasses. Request for an Opinion. Int. J. Syst. Evol. Microbiol. 2001, 51, 725-727.
Original article in IJSEM Online