New atopid trilobites are described from the early Cambrian Cumbres beds and Herrerías shale of northern Huelva Province (Andalusia, Spain) and are dated as middle–late Marianian (Cambrian Series 2, Stage 4). New specimens of Atops calanus Richter and Richter, 1941 are described and the Laurentian species Pseudatops reticulatus (Walcott, 1890b) is recognized for the first time in the Mediterranean subprovince. The associated trilobite assemblage studied herein suggests an age close to the base of Cambrian Stage 4.

中文翻译：

---

伊比利亚上马里亚纪（寒武纪系列 2，第 4 阶段）的 Atopidae (Trilobita)

在韦尔瓦省北部（西班牙安达卢西亚）的早期寒武纪 Cumbres 层和 Herrerías 页岩中描述了新的阿托皮三叶虫，其年代为中晚期马里亚纪（寒武纪系列 2，第 4 阶段）。新标本顶上Richter 和 Richter，1941 年被描述和 Laurentian 物种网纹假龙(Walcott, 1890b) 首次在地中海次省得到认可。本文研究的相关三叶虫组合表明其年龄接近寒武纪第 4 阶段的底部。