The Mesozoic era; (occasionally) the system of rocks dating from this time.
| 单词 | θ5460 | 
| 释义 | the world > the earth > structure of the earth > age or period > 			[noun]		 > secondary or Mesozoic (10)		 Mesozoic1873 The Mesozoic era; (occasionally) the system of rocks dating from this time. Subcategories:— 			Triassic-Jurassic transition			(3)		 — 			Jurassic			(4)		 — 			Cretaceous			(2)		 | 
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