Did dinosaurs live in the cenozoic?

No, dinosaurs did not live in the Cenozoic era. Dinosaurs thrived during the Mesozoic era, which spanned from about 252 to 66 million years ago. The Cenozoic era began after the mass extinction event that occurred at the end of the Mesozoic, leading to the extinction of most dinosaurs. Instead, the Cenozoic is characterized by the rise of mammals and birds, which evolved to fill ecological niches left vacant by the dinosaurs.