Linked from
The 62 pages that link to Eocene, each with the reason it gives.
PaleogeneBroader topic: Its early warmth and later cooling mark the Paleogene’s middle epoch.
CenozoicBroader topic: Its warm ecosystems contrast with the later cooling trajectory.
ArsinoitheriumBroader topic: The genus first appeared in Africa during the late part of this epoch.
PresbyornisBroader topic: Abundant Presbyornis fossils come from Eocene deposits.