We present a comprehensive revision and synthesis of the higher-level classification of the barnacles (Crustacea: Thecostraca) to the genus level and including both extant and fossils forms. We provide estimates of the number of species in each group. Our classification scheme has been updated based on insights from recent phylogenetic studies and attempts to adjust the higher-level classifications to represent evolutionary lineages better, while documenting the evolutionary diversity of the barnacles. Except where specifically noted, recognized taxa down to family are argued to be monophyletic from molecular analysis and/or morphological data. Our resulting classification divides the Thecostraca into the subclasses Facetotecta, Ascothoracida and Cirripedia. The whole class now contains 14 orders, 65 families and 367 genera. We estimate that barnacles consist of 2116 species. The taxonomy is accompanied by a discussion of major morphological events in barnacle evolution and justifications for the various rearrangements we propose.

中文翻译：

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藤壶的进化多样性，包括化石和生物形式的最新分类

我们对藤壶（甲壳纲：Thecostraca）的较高级别分类进行了全面的修订和综合，使其属于属水平，包括现存的和化石的形式。我们提供每个组中物种数量的估计。我们的分类方案已根据最近的系统发育研究的见识进行了更新，并尝试调整更高级别的分类以更好地代表进化谱系，同时记录了藤壶的进化多样性。除非特别指出，否则从分子分析和/或形态学数据来看，公认的家族分类单元都是单系的。我们得出的分类将Thecostraca分为Facetotecta，Ascothoracida和Cirripedia子类。现在，整个班级包含14个订单，65个家庭和367个属。我们估计藤壶由2116种组成。在分类学的同时，还讨论了藤壶进化过程中的主要形态学事件以及我们提出的各种重排的理由。