70 Mya to 50 Mya, Paleocene
67,000,000 BP: An extraterrestrial object struck Earth and marked the end of the Cretaceous Period and began the Tertiary.
66 Mya: Paleocene, Danian: Alpine orogeny begins in Asia and Europe. Large mammals begin to appear up to bear or small hippo size,
65,000,000 BP: It is said that a comet did enormous damage to our Earth. About this time an extraterrestrial object struck Earth and marked the end of the Cretaceous and the beginning of the Tertiary period,
61.6 Mya: Paleocene, Selandia: Climate tropical, modern plants appear, mammals diversify
59.2 Mya: Paleocene. Thanetian. Started with the Chicxulub impact and the K-Pg extinction event.
50,000,000 BP: About this time there was a massive explosive volcanic eruption near what is now Bennett Lake, British Columbia, Yukon Canada.
RCS
200 Mya: Pangea existed as present continents united.
~ Gigantopithecus, after flourishing for at least six million years, disappears. (Natural History 11/91)
~ Greece: An excellent Old Stone Age axe dating to about this time was found.
~ USA: In a site near Barstow, California Stone Age tools were found suggesting approximately this time.