Quotes from Kenneth Lacovara

When the dinosaurs go extinct and 75 percent of life goes extinct after a meteor hits the planet, that's an era boundary. That's when we change from the Mesozoic to the Cenozoic.

If you were back in the Cretaceous Period - the last of the time of the dinosaurs - and you were driving from New York to Philadelphia on the New Jersey Turnpike, you would be driving across water.

There's no doubt if you could go 5, 10, 15 million years into the future and dig down to 2016, you would be able to find the geological evidence that humans occupied the planet.