Abstract Tube-dwelling cirratulids from the Miocene Chilcatay and Pisco Formations of southern Peru are described herein for the first time. These worms constitute tube aggregates cropping out in Burdigalian and Tortonian strata of the East Pisco Basin. These specimens are here referred to the extinct species Diplochaetetes mexicanus Wilson, 1986, which was so far known from the Oligocene and lower Miocene of the Pacific Mexico. The new finds represent the first described fossil record of cirratulids from South America. Different morphologies of the tube aggregates are described, as well as their internal framework and the tube wall features. The palaeoecological and palaeobiogeographical implications of these Miocene cirratulid reefs are then discussed.

中文翻译：

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来自中新世 Chilcatay 和 Pisco 地层（秘鲁东皮斯科盆地）的 cirratulid（Annelida，Polychaeta）珊瑚礁的第一份报告

摘要 本文首次描述了来自秘鲁南部中新世 Chilcatay 和 Pisco 地层的管状卷尾动物。这些蠕虫构成了在东皮斯科盆地的 Burdigalian 和 Tortonian 地层中出现的管状聚集体。这些标本在这里指的是已灭绝的 Diplochaetetes mexicanus Wilson，1986 年，迄今为止，该物种已知于太平洋墨西哥的渐新世和中新世。这些新发现代表了首次描述的南美洲卷尾鱼化石记录。描述了管聚合体的不同形态，以及它们的内部框架和管壁特征。然后讨论了这些中新世 cirratulid 珊瑚礁的古生态和古生物地理意义。