LINK Fossil Treasure Trove of Ancient Animals Unearthed in China The fossils from the Cambrian Period include dozens of new species and provide a window into life more than 500 million years ago
The fact that the Qingjiang Biota is about the same age as the nearby Chengjiang Biota, but contains many previously unknown species, indicates that the Cambrian hosted more unusual organisms than paleontologists previously imagined. The diversity of life at the time could be a signal of a much earlier flurry of evolutionary activity that gave rise to many new species preserved at sites like Qingjiang and the Burgess Shale.
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