Chinese fossil find illuminates Earth's earliest mass extinction
NANJING, Jan. 30 (Xinhua) -- Scientists in China have unearthed a treasure trove of ancient fossils that is helping to rewrite the story of one of Earth's earliest and least-understood catastrophes: the first mass extinction of complex animal life.
This event, known as the Sinsk event, struck about 513 million years ago. It occurred not long after the Cambrian explosion, a remarkable period during which all major