![Kenneth Lacovara Quotes: 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.](https://www.quoteslyfe.com/images/collection3/quotations787/When-the-dinosaurs-go-extinct-and-75-787969.jpg)
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.
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This page presents the quote "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.". Author of this quote is Kenneth Lacovara. This quote is about percent, life, dinosaurs, eras, change, meteors,.