This paper aims to evaluate the zone-by-zone changes in Lochkovian conodont biodiversity in the Pyrenees region and compare the results with previous studies. Additionally, the paper seeks to identify evolutionary phases within the Lochkovian. We analyse the stratigraphic range data from eight classical Pyrenean Lochkovian sections. A total of 48 taxa at the species level, primarily confined to the Lochkovian, are included in the analysis. We employ both qualitative and quantitative approaches, including Clark's method for the conodont evolution index and Foote's parameters for measuring taxonomic diversity and rates. The zonal scheme employed in this study follows the global three-fold subdivision of the Lochkovian stage, with additional subdivisions based on local records. The zone-by-zone analysis of stratigraphically well-controlled successions contributes to our understanding of the conodont diversity dynamics in this region. The results are consistent with previous studies, but also highlight the unique aspects of the Pyrenean conodont record. Their highest diversity occurs in the middle Lochkovian within the kutscheri-pandora beta Zone, succeeded by an extinction event towards the end of this interval. Following a brief proliferation of species at the onset of the upper Lochkovian, another extinction event concludes this Stage. Results from all different rate measurements applied to Pyrenean Lochkovian conodonts are in disagreement with the prevailing perspective suggesting an escalation in the proportion of singletons and a concomitant decline in per-taxon rates with an increase in interval length. Comparative analysis of conodont records across various regions (Carnic Alps, Prague Synform, Central Nevada, and the Pyrenees) during the Lochkovian reveals significant differences in biodiversity, taxonomic composition, and zonal distribution.

本文旨在评估比利牛斯山脉地区洛克科牙形刺生物多样性的逐区变化，并将结果与​​之前的研究结果进行比较。此外，本文还试图确定洛克科维系的进化阶段。我们分析了八个经典比利牛斯洛赫科夫剖面的地层范围数据。分析中包括了物种级别的总共 48 个类群，主要限于洛克科类。我们采用定性和定量方法，包括用于牙形刺进化指数的克拉克方法和用于测量分类多样性和比率的富特参数。本研究中采用的分区方案遵循洛赫科阶的全球三重细分，并根据当地记录进行了额外的细分。对地层控制良好的序列进行逐区分析有助于我们了解该地区的牙形刺多样性动态。结果与之前的研究一致，同时也凸显了比利牛斯山牙形刺记录的独特之处。它们的最高多样性发生在库奇里-潘多拉贝塔区内的洛赫科阶中期，并在该区间末期发生了一次灭绝事件。在上洛奇科阶开始时短暂的物种增殖之后，另一次灭绝事件结束了这个阶段。适用于比利牛斯洛克奇科牙形刺的所有不同速率测量结果与普遍观点不一致，主流观点表明，随着间隔长度的增加，单例比例上升，并且每个分类单元的速率随之下降。对洛克时期不同地区（卡尔尼克阿尔卑斯山、布拉格 Synform、内华达中部和比利牛斯山脉）牙形刺记录的比较分析揭示了生物多样性、分类组成和地带分布的显着差异。