HSK东西 Scripts Advanced Search Radicals [expand definitions]
Gǔshēngdài Paleozoic, geological era 545-250m years ago, covering Cambrian 寒武紀
>寒武纪, Ordovician 奧陶紀
>奥陶纪, Silurian 志留紀
>志留纪, Devonian 泥盆紀
>泥盆纪, Carboniferous 石炭紀
>石炭纪, Permian 二疊紀
>二叠纪

Character Composition

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线仿线·线··线··西·西宿····西宿·····

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Look up 古生代 in other dictionaries

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