单词 | Ischnacanthiformes |
释义 | Ischnacanthiformes [´isk·nǝ´kan·thǝ`fōr´mēz] PALEONTOLOGY A monofamilial order of extinct fishes of the order Acanthodii; members were slender, lightly armored predators with sharp teeth, deeply inserted fin spines, and two dorsal fins. |
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