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Internet dating attending college research. Evaluating the age selectivity of recent extinctions with Phanerozoic history. Steve C. Wang: Talks 2. contrasting the age selectivity of my website contemporary extinctions with Phanerozoic background and size extinctions, Geobiology Symposium XXVII, school of Pennsylvania, March 2020. 1. calculating the length of time and speed with the Cambrian surge, […]