acanthodian
[əˌkanˈθəʊdɪən]noun
a small spiny-finned fossil fish of a group found chiefly in the Devonian period
棘鱼纲化石Class (or subclass) Acanthodii
棘鱼纲（或亚纲）
语源mid 19th cent.: from modern Latin Acanthodii (from acantho-) + -an热门单词
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