泥盆纪 [地质] Devonian ; [地质] Devonian period ; devonikausi ; Age of Fishes
中泥盆纪 middle Devonian
晚泥盆纪前时期 pre-Late Devonian age
志留泥盆纪冰期 Siluro-Devonian ice age
泥盆纪地层 Devonian strata
前泥盆纪 pre-devonian
畲田桥统中泥盆纪 Shetienchiao series
泥盆纪火成岩 [岩] Devonian igneous rock ; devonian igneous rocks
晚泥盆纪 frasnian
泥盆纪的 devonian
泥盆纪末期是脊椎动物出现很的关键时期。
泥盆纪晚期 约三亿六千万年以前，五分之一海洋家族遭毁灭，同时毁灭的还有半数以上的海洋属生物。
Late Devonian About 360m years ago, a fifth of marine families were wiped out, alongside more than half of all marine genera.
这是一个渐进的变化，这个变化得益于贯穿泥盆纪无所作为的2千5百万年间此起彼伏的物种灭绝。
We had seen this as a gradual change, one fuelled by a series of extinction pulses spread over 25 million years of the Devonian's dog days.
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