ジュラ紀きジュラきFreq.FrequencyTop 100,000Meanings1nounJurassic periodgeologyGeological period from about 201 to 145 million years ago, known for dinosaurs and the breakup of Pangaea.ジュラ紀きには恐きょう竜りゅうが繁はん栄えいしていた。Dinosaurs flourished during the Jurassic period.
