ASBOG Practice Exam 2026 – Comprehensive All-in-One Guide to Ace Your Geology Licensure!

The Cenozoic era is indeed divided into the Paleogene and Neogene periods. This era, which spans from about 66 million years ago to the present, is significant in Earth's history as it reflects the evolution of mammals and birds following the mass extinction that marked the end of the Mesozoic era.

The Paleogene period consists of three epochs: Paleocene, Eocene, and Oligocene, while the Neogene period includes the Miocene and Pliocene epochs. This division is based on significant changes in both the climate and the types of organisms present during these times, marking important evolutionary developments.

Understanding these periods is crucial for studies related to geology and paleontology, as they frame the context of many significant geological and biological events. The other options listed refer to different geological eras or periods that do not pertain to the Cenozoic era.