Chapter 8 : Family-group Nominal Taxa and their Names
Article 36: Principle of Coordination
Article 37: Nominotypical taxa
Article 38: Homonymy between family-group names
Article 39: Invalidity due to homonymy or suppression of the name of the type genus
Article 40: Synonymy of the type genus
Article 41: Misidentified type genera and overlooked type fixations