This is a reconstruction of the early Eocene (52 million-year-old) fauna that inhabited the rainforest around a northern British Colombia lake. The tapiroid Heptodon drinks in the shallows ...

Clark’s primary work focused on the Eocene Green River Formation in Utah and the Eocene/Oligocene White River Group in South Dakota and Colorado. His most notable contribution is a complete skeleton ...

Allow us to refresh your memory: it was the Paleocene-Eocene Thermal Maximum ... fossil astronauts was a shell of the aptly-named Moon snail, selected by Portell. The snail lived 2.9 million ...