Abstract Bouleiceras is a very rare genus among the rich assemblages of ammonoids from the lower Toarcian of the Iberian Range. So far, only two dozen specimens have been recorded in numerous field campaigns carried out since 1965 by different authors. The interest of this taxon lies in its peculiar paleogeographical distribution in comparison with most other ammonoids of the same age. A review of these specimens is carried out, including those obtained in previous works and others recently collected in selected localities. Based mainly on the differences in the shape of the ventral section and the suture line, seven species have been identified; two of which are new: Bouleiceras ibericum nov. sp. and? Bouleiceras betetensis nov. sp. All the reviewed specimens are recorded in the Semicelatum Subzone of the Tenuicostatum Zone and the Elegantulum Subzone of the Serpentinum Zone from the Central Sector and the Levantine Sector of the Iberian Range. The global distribution of the genus is summarized from the known data, and its possible dispersal routes are analyzed, as well as the factors that could have conditioned them.

中文翻译：

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来自伊比利亚山脉（西班牙）的下托阿尔阶（侏罗纪）的 Bouleiceras（Hildoceratidae，Ammonitina）：分类学、地层分布及其散布的见解

摘要 Bouleiceras 是伊比利亚山脉下托阿克阶丰富的菊花组合中的一个非常罕见的属。到目前为止，在不同作者自 1965 年以来进行的众多野外活动中，仅记录了两打标本。与大多数其他同龄菊石相比，该分类群的兴趣在于其独特的古地理分布。对这些标本进行了审查，包括以前作品中获得的标本和最近在选定地点收集的其他标本。主要根据腹面断面形状和缝合线的不同，已鉴定出7种；其中两个是新的：Bouliceras ibericum nov。sp. 和？Bouleiceras betetensis 十一月。sp. 所有审查的标本都记录在伊比利亚山脉中央区和黎凡特区的 Tenuicostatum 区的 Semicelatum 亚区和 Serpentinum 区的 Elegantulum 亚区。根据已知数据总结了该属的全球分布，并分析了其可能的传播途径，以及可能影响它们的因素。