波泰士陨石坑是一个位于乌克兰基洛夫格勒州的陨石坑，直径24公里，以氩放射性定年法推测，形成的时间约在距今65.17 ± 0.64百万年前，与在墨西哥的希克苏鲁伯陨石坑相近，同为疑似造成白垩纪-第三纪灭绝事件的陨石坑。

除了波泰士陨石坑和希克苏鲁伯陨石坑之外，世界各地还有几个在距今约6千5百万年所形成的撞击痕迹，如英国外海的银坑陨石坑、印度洋的湿婆陨石坑等。这些年代相近的陨石坑暗示了当时可能有一连串的撞击事件相继发生。1994年苏梅克-列维9号彗星因潮汐力而分裂，数个碎片在接下来的几天内陆续撞击木星，显示连续撞击事件确实是有可能的。

The Boltysh Crater is an impact crater in the Kirovohrad Oblast of Ukraine. The crater is 24 kilometres (15 mi) in diameter and its age of 65.17 ± 0.64 million years, based on argon dating techniques, is within error of that of Chicxulub Crater in Mexico, and the Cretaceous–Paleogene boundary (K–Pg boundary). The Chicxulub impact is believed to have caused the mass extinction at the end of the Cretaceous period, which included the extinction of the dinosaurs. The Boltysh impact likely occurred several thousand years before Chicxulub, suggesting the extinction event may have been driven by multiple meteor strikes over an extended period of time about 65 million years ago.