meaning of jurassic
1. Of the age of the middle Mesozoic, including, as divided in England and Europe, the Lias, Oolite, and Wealden; -- named from certain rocks of the Jura mountains.
2. The Jurassic period or formation; -- called also the Jura.
3. from 190 million to 135 million years ago; dinosaurs; conifers
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