explosion...
https://www.theguardian.com/science/2019/mar/21/mindblowing-haul-of-fossils-over-500m-years-old-unearthed-in-china
'Mindblowing' haul of fossils over 500m years old unearthed in China
Thousands of fossils date back to huge burst in diversity of life on Earth known as Cambrian
explosion...
https://www.theguardian.com/science/2019/mar/21/mindblowing-haul-of-fossils-over-500m-years-old-unearthed-in-china
explosion...
https://www.theguardian.com/science/2019/mar/21/mindblowing-haul-of-fossils-over-500m-years-old-unearthed-in-china
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