Cretaceous / Tertiary Extinction Event.

Thívai cost of metformin 1000 mg 65000000 BC-02-23 19:23:36 Sixty-five million years ago the dinosaurs died out along with more than 50% of other life forms on the planet. This mass extinction is so dramatic that for many years it was used to mark the boundary between the Cretaceous Period, when the last dinosaurs lived, and the Tertiary Period, when no… Continue reading Cretaceous / Tertiary Extinction Event.