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单词 acanthodii
释义

Acanthodii


Acanthodii

[ə‚kan′thō·dē‚ī] (paleontology) A class of extinct fusiform fishes, the first jaw-bearing vertebrates in the fossil record.

Acanthodii


Acanthodii

an order of placoderm fossil fish, whose members bear spines along the anterior margin of the fins.
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更新时间:2025/1/31 13:07:04