单词 | Semionotidae |
释义 | Semionotidaeplural noun Sem·i·o·noti·dae -ˈnät- : a family of extinct Triassic ganoid fishes from America, Europe, and Africa that have a deep body, small mouth with teeth adapted chiefly to grinding or crushing, and rhomboid scales and that are often considered ancestral to the present-day freshwater gars |
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