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searching for Cambrian–Ordovician extinction event 1 found (11 total)

alternate case: cambrian–Ordovician extinction event

Benito Juárez, Buenos Aires (441 words) [view diff] exact match in snippet view article find links to article

fossils and offer insights into life on Earth after the Cambrian–Ordovician extinction event of 488 million years ago. Julio Alak, Minister of Justice