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1.an extinct fishlike vertebrate.
一种灭绝了的、像鱼一样脊椎动物。收藏指正
2.A fish or fishlike vertebrate.
鱼状脊椎动物鱼或似鱼的脊椎动物收藏指正
3.extinct group of armored fishlike vertebrates; taxonomy is not clear.
已灭绝的有甲脊椎动物，外形与鱼相似；其分类尚不明确。收藏指正
4.fishlike animals having a notochord rather than a true spinal column.
有脊索但无真正的脊柱鱼类动物。收藏指正
5.extinct fishlike jawless vertebrate having a heavily armored body; of the Paleozoic.
已经灭绝的长有很重披甲的鱼形无颚动物；古生代的生物。收藏指正
6.extinct group of armored jawless fishes or fishlike vertebrate; taxonomy is not clear.
现已灭绝的无颚有甲鱼类或鱼状脊椎动物；其分类尚不明确。收藏指正
7.fishlike vertebrate with bony plates on head and upper body; dominant in seas and rivers during the Devonian; considered the earliest vertebrate with jaws.
头部和身体上方有骨片的似鱼的脊椎动物；泥盆纪时期海中和河中的优势物种；曾被认为是最早的有颚脊椎动物。收藏指正
8.Any of various extinct fishlike marine reptiles of the order Ichthyosauria of the Triassic Period to the Cretaceous Period, having a porpoiselike head and an elongated, toothed snout.
鱼龙三叠纪至白垩纪间的属于鱼龙目的水生爬行动物中的任一种，现已绝迹，该动物头象海豚，喙长，有牙收藏指正
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