The Cenozoic era is composed of tertiary period followed by quaternary period.

新生代是由第三纪和第四纪组成的。

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The second major era of geological time which lasted from the end of the Palaeozoic era about 225 million years ago, to the start of the Tertiary, some 70 million years ago.

中生代是地质时期的第二个大时代，从大约2.25亿年前的古生代末延续到约7千亿年前的第三纪初。

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