Chapter 8 : Family-group Nominal Taxa and their Names

Article 35: The family group

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