there are also resemblances among early silurian rugose coral faunas of the yangtze region, eastern australia, and eastern north america to some extent.
扬子区早志留世珊瑚群与澳大利亚东部、北美东部同期珊瑚也有一定的相似性。
for example, 97.6% of the cultivars had small or medium size leaves and 73.5% had slightly rugose in leaf upper surface.