始寒武紀 的英文怎麼說
中文拼音 [shǐhánwǔjì]
始寒武紀
英文
eocambrian-
Follow - up studies using the molecular clock produced estimates for this split that varied significantly, ranging from as old as one billion years ago to as young as just before the cambrian period
后來使用分子時鐘來估算分支時間的研究結果,差異都很大,可能早至10億年前,晚至寒武紀即將開始時。Cambrian : the beginning of the paleozoic era animals with hard - shells appeared in great numbers for the first time during the cambrian
寒武紀:古生代的開始(距今5億1 , 400萬年前) ,具有硬殼的生物在寒武紀第一次大量出現。Their results, published in 1996, postulated that bilaterians diverged from more primitive animals deep into the precambrian era, as much as 1. 2 billion years ago
他們的結果發表於1996年,其中推測,早在12億年前的前寒武紀,兩側對稱動物便已經從較原始的物種分支出來。
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