What happened in the days, even hours, after an asteroid set off the fifth extinction? A New Jersey quarry, and site of a new museum founded by paleontologist Ken Lacovara, sheds light on the mystery.

Correction: An earlier version of this story incorrectly stated that Mantua Township, NJ helped to raise money for the construction of the Edelman Fossil Park & Museum. Paleontologist Ken Lacovara partnered with Rowan University to fundraise.

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