Geologic history is divided, from largest amount of time to smallest amount of time, by eons, eras, periods, and epochs.
Cenozoic Era
Chron Age Epoch Period Era Eon
The largest expanse of time on the geologic time scale is the eon, which is further divided into eras. Eons are the longest subdivisions of time, representing billions of years of Earth's history.
The geologic time scale spans approximately 4.6 billion years, encompassing the history of Earth from its formation to the present day. It is divided into eons, eras, periods, epochs, and ages to categorize and understand Earth's geological history.
Geologists have divided Earth's history into manageable units called eons, eras, periods, and epochs. These divisions help scientists study and understand the Earth's geological and biological history over millions of years.
Geologic history is divided, from largest amount of time to smallest amount of time, by eons, eras, periods, and epochs.
fossil record geologic time scale
fossil record geologic time scale
fossil record geologic time scale
fossil record geologic time scale
fossil record geologic time scale
fossil record geologic time scale
fossil record geologic time scale
fossil record geologic time scale
fossil record geologic time scale
Cenozoic Era
The Earth's history is divided into geologic time periods, with the largest unit being eons, which are further divided into eras, periods, epochs, and ages. The current eon we are in is the Phanerozoic eon, divided into the Paleozoic, Mesozoic, and Cenozoic eras. Each division represents significant changes in Earth's geological and biological history.