The aragonite shelled, planktonic gastropod family Atlantidae (shelled heteropods) is likely to be one of the first groups to be impacted by imminent ocean changes, including ocean warming and ocean acidification. With a fossil record spanning at least 100 Ma, atlantids have experienced and survived global-scale ocean changes and extinction events in the past. However, the diversification patterns and tempo of evolution in this family are largely unknown. Based on a concatenated maximum likelihood phylogeny of three genes (cytochrome c oxidase subunit 1 mitochondrial DNA, 28S and 18S ribosomal rRNA) we show that the three extant genera of the family Atlantidae, Atlanta, Protatlanta and Oxygyrus, form monophyletic groups. The genus Atlanta is split into two groups, one exhibiting smaller, well ornamented shells, and the other having larger, less ornamented shells. The fossil record, in combination with a fossil-calibrated phylogeny, suggests that large scale atlantid extinction was accompanied by considerable and rapid diversification over the last 25 Ma, potentially driven by vicariance events. Now confronted with a rapidly changing modern ocean, the ability of atlantids to survive past global change crises gives some optimism that they may be able to persist through the Anthropocene.

中文翻译：

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亚特兰特异足动物（腹足纲，翼管总科）的化石校准分子系统发育。


文石带壳浮游腹足动物科Atlantidae（带壳异足动物）很可能是最先受到即将发生的海洋变化（包括海洋变暖和海洋酸化）影响的类群之一。亚特兰蒂斯生物的化石记录跨度至少为 100 Ma，过去曾经历过全球范围的海洋变化和灭绝事件并幸存下来。然而，这个家族的多样化模式和进化速度在很大程度上是未知的。基于三个基因（细胞色素 c 氧化酶亚基 1 线粒体 DNA、28S 和 18S 核糖体 rRNA）的串联最大似然系统发育，我们表明 Atlantidae 科的三个现存属，Atlanta、Protatlanta 和 Oxygyrus 形成单系群。亚特兰大属分为两组，一组具有较小、装饰精美的贝壳，另一组具有较大、装饰较少的贝壳。化石记录与化石校准的系统发育相结合表明，在过去 25 Ma 中，大规模的亚特兰蒂斯灭绝伴随着相当大且快速的多样化，这可能是由变异事件驱动的。现在，面对快速变化的现代海洋，亚特兰蒂斯在全球变化危机中生存下来的能力让人们乐观地认为，它们可能能够在人类世中持续存在。