Colonial
The extinction of the dinosaurs did not occur during the Cenozoic era. Dinosaurs went extinct at the end of the Mesozoic era, which preceded the Cenozoic era.
Antebellum Era
The colonization of land by plants did not occur during the Cenozoic era as it happened earlier during the Paleozoic era.
During the Cenozoic era, which began around 66 million years ago, dinosaurs went extinct at the end of the previous Mesozoic era. Therefore, the existence of dinosaurs is something that did not occur during the Cenozoic era.
Oklahoma
200 b.C.
21st-16th b.c. century...:))
Yes.
The formation of the ozone layer
he was the president during that era
Oklahoma
Like, 1000 bc