In the Eocene world that emerged from the vestiges of the Late Cretaceous, giant avian dinosaurs left their mark on the landscape. I mean that literally.

The Eocene World: Hyaenodon’s Habitat The Eocene Epoch was a time of lush forests, steaming swamps, and sprawling open plains. Earth’s climate was warmer, and continents were on the move ...

It was a world largely inconsistent with natural ice formation. By 2030, under a business-as-usual scenario, Pliocene-like conditions become the closest match for most land areas, according to the ...

Researchers have managed to simulate the climate during the Paleocene-Eocene Thermal Maximum—when Earth was 14 degrees Celsius warmer than it is now.

47 million years ago, the world was a hothouse. Lush jungles covered much of the globe, stretching far from the equator, and they were rife with mammals. This was life in the Eocene Epoch.

The strongest New World signal remaining in Eocene Patagonia based on well-described macrofossils comes from fossil fruits of Physalis (a genus of flowering plants including tomatillos and ground ...

Yet, in Eocene strata, the most likely candidate we know of is Diatryma. Like the majority of trace fossils, we can’t be absolutely certain that Diatryma made the Chuckanut Formation tracks.