Which is the largest division of time on the geologic time scale?

EonsEons are the largest intervals of geologic time and are hundreds of millions of years in duration. In the time scale above you can see the Phanerozoic Eon is the most recent eon and began more than 500 million years ago. Eons are divided into smaller time intervals known as eras.

What is the largest division of geological time?

Eons

Eons, or Eonothems, are the largest division of time, lasting thousands of millions of years. There eons are: the Phanerozoic (current eon) and the Precambrian eons of the Proterozoic, Archean, and Hadean. Eras, or Erathems, are the subdivisions of eons. They are more on the scale of hundreds of millions of years.

What are the largest groups on the geologic time scale?

The geologic history of the Earth is broken up into hierarchical chunks of time. From largest to smallest, this hierarchy includes eons, eras, periods, epochs, and ages.

What is the second largest division of geologic time?

Eras. Eons of geological time are subdivided into eras, which are the second-longest units of geological time. The Phanerozoic eon is divided into three eras: the Paleozoic, Mesozoic, and Cenozoic.

What is the smallest division of geologic time?

Epoch: This is the smallest unit of geologic time. An Epoch lasts several million years.

What is the smallest and fourth largest division of geological time?

What are the 4 major divisions of the time scale from longest to shortest? From longest to shortest, the segments of time are eon, era, period, and epoch. 5.