The world's oldest known fossil forest has been discovered in a quarry in upper New York state

Evidence of the world's oldest forest, dating back some 385 million years, has been discovered in an abandoned quarry in upstate New York, according to a new study published in Current Biology.

source https://www.cnn.com/2019/12/20/us/fossil-trees-new-york-worlds-oldest-trnd-scn/index.html