English Eocene Cited by user Kent G. Budge on 21 Jun 2021 The Eocene Epoch is a geological epoch that lasted from about 56 to 33.9 million years ago (mya).
English Chesapeake Bay impact crater Cited by user FriarTuck1981 on 07 Oct 2016 The Chesapeake Bay impact crater was formed by a bolide that struck the eastern shore of North America about 35.5 ± 0.3 million years ago, in the late Eocene epoch.