This discovery can help scientists learn more about how the modern world came about after the mass extinction of the dinosaurs. (techtimes.com)
The mass extinction of the dinosaurs was down to the location of the asteroid's impact and the kind of rocks it landed on. (theconversation.com)
They are often called house cats when kept as Epoch: Years: Notes: Paleocene: 58 to 64 million years ago: Began with extinction of dinosaurs. (myintimcity.com)