ichthyosauria 📖 中文释义 鱼龙目 📘 English Definition(英文释义) n. pl. An extinct order of marine reptiles, includingIchthyosaurus and allied forms; -- called also Ichthyopterygia. Theyhave not been found later than the Cretaceous period. ← ichthyosauri I 字母词表 ichthyosaurian →