Of or pertaining to a geologic epoch within the Paleogene period from about 65 to 56 million years ago; marked by the rise of the first large mammals in a tropical climate
(Jeoloji) (UK Palaeocene) relating to or denoting the earliest epoch of the Tertiary period (between the Cretaceous period and the Eocene epoch, about 65 to 56.5 million years ago), a time of rapid development of mammals
8 million years ago. It precedes the Eocene Epoch and follows the Cretaceous Period. The Paleocene was characterized by a generally warming climate, with little or no frost; seasonal variation probably consisted of alternating dry and wet seasons. By the Paleocene the dinosaurs and other reptilian groups that were dominant during the Cretaceous had disappeared, and the epoch saw the rapid proliferation and evolution of mammals
(Jeoloji) (US Paleocene) relating to or denoting the earliest epoch of the Tertiary period (between the Cretaceous period and the Eocene epoch, about 65 to 56.5 million years ago), a time of rapid development of mammals