Canfield D E, Teske A
Max Planck Institute for Marine Microbiology, Bremen, Germany.
Nature. 1996 Jul 11;382(6587):127-32. doi: 10.1038/382127a0.
The evolution of non-photosynthetic sulphide-oxidizing bacteria was contemporaneous with a large shift in the isotopic composition of biogenic sedimentary sulphides between 0.64 and 1.05 billion years ago. Both events were probably driven by a rise in atmospheric oxygen concentrations to greater than 5-18% of present levels--a change that may also have triggered the evolution of animals.
非光合硫化物氧化细菌的进化与24亿至18亿年前生物成因沉积硫化物同位素组成的巨大变化同时发生。这两个事件可能都是由大气氧浓度上升到高于当前水平的5%-18%所驱动的——这一变化也可能引发了动物的进化。 （注：原文中0.64和1.05 billion years ago可能有误，根据相关知识推测应为2.4和1.8 billion years ago，译文按推测后内容翻译。）
