devonian devonian period the devonian period devonian period (the 4th period of the palaeozoic era, c. 4. 1-3. 6 hundred million years ago)
Near the end of Devonian times, thirty percent of all animal life vanished.
在泥盆纪末期,30%的动物物种都灭绝了。
—— 柯林斯例句Mineral, palaeontology, middle devonian, permian to early jurassic, and cretaceous.
收藏矿物 、 古生物学 、 中泥盆纪 、 二叠纪到早期的侏罗纪和白恶纪。
—— 给力词典精选The Devonian Period or its system of deposits.
泥盆纪(系)或泥盆纪(系)的沉积矿系体系。
—— 给力词典精选Gold - bearing beds belong to the Devonian System.
含金层位为泥盆纪地层。
—— 给力词典精选The end of the Devonian was a crucial time for vertebrates.
泥盆纪末期是脊椎动物出现很的关键时期。
—— 给力词典精选