The phylogenetic history of rudist bivalves is reviewed using a cladistic analysis based on 41 morphological shell characters and a new topology is proposed. A novel approach to rudist comparative anatomy has enabled the mapping of homologous zones. We highlight that ‘pallial canals’ can be homologous to four specific cavities that have merged during rudist evolution. The characters of the myophores and muscle insertions have also been reappraised using a hierarchical scheme. We formalize, for the first time, the complex diversification of rudist myophores by constructing tree-like characters that can contain up to six informative states for each of the four myophores. All characters have been coded as independent features. This has enabled the identification of different evolutionary rates of change between left and right valves and allows the recognition of the various morphoanatomic responses of one valve to the structural changes of the other. All characters have been coded in hierarchies and analysed in three-taxon analysis. Taxonomic sampling composed of two species per family allows an exhaustive monophyly test of all families of the suborder Hippuritidina. Only the families Polyconitidae, Plagioptychidae, Radiolitidae and Hippuritidae are found to be monophyletic. The two superfamilies are both found to be polyphyletic. The Hippuritidae is found to be the sister group of the Radiolitidae. Pachytraga is found as the sister group of all the rudists with pallial canals except Sellaea. Two evolutionary radiations in rudists are dated, using the cladistic concept of temporal hierarchy, to the Hauterivian + and the Albian+.

回顾性分析了双壳类双壳类动物的系统进化史，基于41个壳形态特征进行了分类分析，并提出了一种新的拓扑结构。鲁迪斯比较解剖学的一种新方法已使同源区域的映射成为可能。我们强调“胆管”可以与在鲁斯派进化过程中融合的四个特定的腔同源。还使用分层方案重新评估了肌丝的特征和肌肉的插入。我们首次通过构建树状字符来规范红移的多形体的复杂化，这四个类体中的每一个最多可包含六个信息状态。所有字符均已编码为独立功能。这使得能够识别左，右瓣膜之间不同的进化变化率，并能够识别一个瓣膜对另一瓣膜的结构变化的各种形态解剖学响应。所有字符均已在层次结构中进行了编码，并在三分类单元分析中进行了分析。每个科由两个物种组成的分类学采样可对Hippuritidina子科的所有科进行详尽的单字测试。仅发现con科，Pla科，放射科和蛇科科是单系科。发现这两个超家族都是多系的。发现Hippuritidae是Radioliidae的姐妹群体。所有字符均已在层次结构中进行了编码，并在三分类单元分析中进行了分析。每个科目由两个物种组成的分类学采样可以对Hippuritidina子科的所有科目进行详尽的单字测试。仅发现con科，Pla科，放射科和蛇科科是单系科。发现这两个超家族都是多系的。发现Hippuritidae是Radioliidae的姐妹群体。所有字符都已在层次结构中进行了编码，并在三分类单元分析中进行了分析。每个科目由两个物种组成的分类学采样可以对Hippuritidina子科的所有科目进行详尽的单字测试。仅发现con科，Pla科，Radio科和蛇科科是单系科。发现这两个超家族都是多系的。发现Hippuritidae是Radioliidae的姐妹群体。Pachytraga被认为是除Sellaea以外所有带有运河的鲁道夫的姊妹组。使用时间等级的共性概念，斯图尔特主义者的两个进化辐射可以追溯到Hauterivian +和Albian +。