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Definition of Jurassic period
1. Noun. From 190 million to 135 million years ago; dinosaurs; conifers.
Exact synonyms: Jurassic
Group relationships: Age Of Reptiles, Mesozoic, Mesozoic Era
Generic synonyms: Geological Period, Period
Group relationships: Age Of Reptiles, Mesozoic, Mesozoic Era
Generic synonyms: Geological Period, Period