'''[[Chapter15|Chapter 15: Types in the Genus Group]]''' ---- '''Article 66. Application.''' The provisions and recommendations of this Chapter apply equally to nominal genera and subgenera (including genus-group divisions deemed to be subgenera; see Article 10.4), but not to collective groups at the genus-group level, which have no type species [Arts. 13.3.2, 42.3.1, 67.14]. . '''66.1.''' An ichnotaxon at the genus-group level proposed after 1999 must have a type species fixed for its name to be available. If established before 2000 it does not require a type species; however, one may have been, or may be, fixed in accordance with Article 69 (see also Article 13.3.3). ---- [[Preamble]] | Articles [[Article1|1]] [[Article2|2]] [[Article3|3]] [[Article4|4]] [[Article5|5]] [[Article6|6]] [[Article7|7]] [[Article8|8]] [[Article9|9]] [[Article10|10]] [[Article11|11]] [[Article12|12]] [[Article13|13]] [[Article14|14]] [[Article15|15]] [[Article16|16]] [[Article17|17]] [[Article18|18]] [[Article19|19]] [[Article20|20]] [[Article21|21]] [[Article22|22]] [[Article23|23]] [[Article24|24]] [[Article25|25]] [[Article26|26]] [[Article27|27]] [[Article28|28]] [[Article29|29]] [[Article30|30]] [[Article31|31]] [[Article32|32]] [[Article33|33]] [[Article34|34]] [[Article35|35]] [[Article36|36]] [[Article37|37]] [[Article38|38]] [[Article39|39]] [[Article40|40]] [[Article41|41]] [[Article42|42]] [[Article43|43]] [[Article44|44]] [[Article45|45]] [[Article46|46]] [[Article47|47]] [[Article48|48]] [[Article49|49]] [[Article50|50]] [[Article51|51]] [[Article52|52]] [[Article53|53]] [[Article54|54]] [[Article55|55]] [[Article56|56]] [[Article57|57]] [[Article58|58]] [[Article59|59]] [[Article60|60]] [[Article61|61]] [[Article62|62]] [[Article63|63]] [[Article64|64]] [[Article65|65]] [[Article66|66]] [[Article67|67]] [[Article68|68]] [[Article69|69]] [[Article70|70]] [[Article71|71]] [[Article72|72]] [[Article73|73]] [[Article74|74]] [[Article75|75]] [[Article76|76]] [[Article77|77]] [[Article78|78]] [[Article79|79]] [[Article80|80]] [[Article81|81]] [[Article82|82]] [[Article83|83]] [[Article84|84]] [[Article85|85]] [[Article86|86]] [[Article87|87]] [[Article88|88]] [[Article89|89]] [[Article90|90]] | [[Glossary]] [[Appendices]] [[Constitution]] <>