Which Statement About the Geologic Time Scale Is Incorrect

Multiple Choice

Which statement about the geologic time scale is incorrect?

A) Mammals originated early in the Mesozoic era.
B) Adaptive radiation of flowering plants, insects, and birds took place during the Mesozoic era.
C) Mass extinction of the dinosaurs occurred about 65 million years ago.
D) Reptiles originated during the Paleozoic era.
E) Eukaryotes originated during the Proterozoic eon.