The Permian event has attracted much less attention than other mass extinctions because mostly unfamiliar species perished at that time.

二叠纪大灭绝事件比其他大灭绝事件受到的关注要少得多，因为那时灭绝的大多是我们不熟悉的物种。

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Although not one of the "big five" mass extinctions, the mid-Permian extinction has long been considered an important, if puzzling, event.

尽管不是五次物种大灭绝之一，二叠纪中期的物种灭绝依然被长期作为谜一般的事件受到重点关注。

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Previously, the only dateable layers were from the moment the Permian ended and from a subsequent volcanic event some 14m years later.

在此之前唯一可以确定年代的地层是二叠纪结束的时刻，以及大约1400万年后的火山爆发事件。

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