S.Haldane, a pioneering British geneticist, replied: “Fossil rabbits in the Precambrian era.

霍尔丹，英国遗传学的先驱，他回答道：在前寒武纪的兔子化石就是了。

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S. Haldane, a pioneering British geneticist, replied: "Fossil rabbits in the Precambrian era."

霍尔丹，英国遗传学的先驱，他回答道：在前寒武纪的兔子化石就是了。

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An era of geologic time, from the end of the Precambrian to the beginning of the Mesozoic, or from about 570 to about 225 million years ago.

古生代是地质时期的一个时代，从前寒武纪末开始，到中生代初，大约从5.7亿年前到2.25亿年前。

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It would have spanned millions years of history, from the Precambrian Era when land was barren and devoid of life to the age when dinosaurs roamed the Earth.

BBC: Fragments of ancient continent buried under Indian Ocean