Scleractinian corals have been reported in the Antarctic Cretaceous since the beginning of the 20th century, but few studies have described the taxonomy of these specimens. Here we describe three new occurrences of coral from the James Ross Basin based on specimens collected in 2016. We identified Dasmosmilia? sp. and Heterocyathus filkorni sp. nov. in the Alpha Member of the Santa Marta Formation on James Ross Island (upper Santonian to lower Campanian) and Fungiacyathus deltoidophorus and a poorly-preserved and unidentifiable scleractinian coral from the Karlsen Cliffs Member of Snow Hill Island Formation (lower Maastrichtian). Heterocyathus filkorni sp. nov. represents the earliest occurrence of this genus in the Southern Hemisphere and is consistent with the hypothesis that a marine exchange between Europe and Antarctica was occurring in the Late Cretaceous. If confirmed, the Dasmosmilia described here represent their earliest record from the Antarctic Cretaceous.

自 20 世纪初以来，已在南极白垩纪报告了石珊瑚，但很少有研究描述这些标本的分类。在这里，我们根据 2016 年收集的标本描述了詹姆斯罗斯盆地的三种新珊瑚。我们确定了 Dasmosmilia ? sp。和Heterocyathus filkorni sp。十一月 在詹姆斯罗斯岛（上桑托尼亚到下坎帕尼亚）的圣玛尔塔组的 Alpha 组和来自雪山岛组的卡尔森悬崖组（下马斯特里赫特）的Fungiacyathus deltoidophorus和保存不良且无法识别的石珊瑚。异龙鱼sp。十一月 代表该属在南半球最早出现，并且与欧洲和南极洲之间的海洋交换发生在晚白垩世的假设一致。如果得到证实，这里描述的Dasmosmilia代表了它们最早的南极白垩纪记录。