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ostracoderms

美英

网络甲胄鱼；甲青鱼类动物；甲胄鱼类

复数：ostracoderms

ostracoderms

英-英网络释义

ostracoderms

1.an extinct, jawless, mainly freshwater fish, dating from the Silurian and Devonian periods, that had a flat body encased in a layer of protective bony plates and scales

例句：

All animals , as a general rule, are provided with eyes, excepting the ostracoderms and other imperfect creatures ;

所有的动物，通常来说，都有眼睛，除了甲胄鱼和其它未进化的生物；

ostracoderms

ostracoderms

甲胄鱼

甲青鱼类动物

甲胄鱼类

甲皮鲀类

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