Kiel Steffen, Little Crispin T S
School of Earth and Environment, University of Leeds, Leeds LS2 9JT, UK.
Science. 2006 Sep 8;313(5792):1429-31. doi: 10.1126/science.1126286.
The origin and possible antiquity of faunas at deep-sea hydrothermal vents and seeps have been debated since their discovery. We used the fossil record of seep mollusks to show that the living seep genera have significantly longer geologic ranges than the marine mollusks in general, but have ranges similar to those of deep-sea taxa, suggesting that seep faunas may be shaped by the factors that drive the evolution of life in the deep sea in general. Our data indicate that deep-sea anoxic/dysoxic events did not affect seep faunas, casting doubt on the suggested anoxic nature and/or global extent of these events.
自深海热液喷口和冷泉被发现以来，关于其动物群的起源和可能的古老性一直存在争议。我们利用冷泉软体动物的化石记录表明，现存的冷泉属在地质时期的分布范围比一般海洋软体动物长得多，但与深海类群的分布范围相似，这表明冷泉动物群可能受到推动整个深海生命进化的因素的影响。我们的数据表明，深海缺氧/低氧事件并未影响冷泉动物群，这对这些事件所暗示的缺氧性质和/或全球范围提出了质疑。
