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拖鞋珊瑚属(Genus Calceola)长期以来一直是一个属,一个种,若干个亚种。本文在系统采集、整理、深入研究的基础上,提出拖鞋珊瑚属应划分为3个种,21个亚种。这三个种是:Calceola sandalina,C.rectangulata,C.intermediata。拖鞋珊瑚属分布在泥盆纪地层中的四个不同层位,即为下泥盆统的西根阶(Siegenian)、埃姆斯阶(Emsian), 中泥盆统的艾菲尔阶(Eifelian)和吉维特阶(Givetian)。
Genus Calceola has long been a genus, a species, a number of subspecies. Based on the systematic collection, collation and further study, this paper proposes that the coral genus should be divided into 3 species and 21 subspecies. The three species are: Calceola sandalina, C. rectangulata, C. intermediata. Slipper corals are distributed in four different layers in the Devonian strata. They are the Lower Devonian Siegenian, Emsian, Middle Devonian Eifelian, And Givetian (Givetian).