属于显生宙的一个地质时代,包含三叠纪、侏罗纪和白垩纪,约2.3亿至6500万年前,当时地球生命以爬行动物为主。
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属于显生宙的一个地质时代,包含三叠纪、侏罗纪和白垩纪,约2.3亿至6500万年前,当时地球生命以爬行动物为主。；中生代的
Of a geologic era within the Phanerozoic eon that comprises the Triassic, Jurassic and Cretaceous periods from about 230 to 65 million years ago, when life on earth was dominated by reptiles.
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属于显生宙的一个地质时代,包含三叠纪、侏罗纪和白垩纪,约2.3亿至6500万年前,当时地球生命以爬行动物为主。
Of a geologic era within the Phanerozoic eon that comprises the Triassic, Jurassic and Cretaceous periods from about 230 to 65 million years ago, when life on earth was dominated by reptiles.
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