title: The undesirable retroactive changes to Rule 8 of the International Code of Nomenclature of Prokaryotes.
abstract: Changes have been made to Rule 8 of the International Code of Nomenclature of Prokaryotes that caters for the names and nomenclatural types of classes and subclasses. The changes are retroactive because they are not specifically restricted in time. Consequently, that influences names of classes and subclasses and their nomenclatural types that have previously appeared in print.
authors.affiliation: Leibniz-Institut DSMZ-Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH, Inhoffenstraße 7B, 38124 Braunschweig, Germany.
authors.forename: B J
authors.initials: BJ
authors.lastname: Tindall
mesh_terms: D001419:Bacteria / Q000145:classification*; D010802:Phylogeny; D009626:Terminology as Topic