Geological Time Quiz

During which period did the age of fishes begin?

In what era was the Carboniferous Period?

What was the dominant life-form of the Jurassic Period?

What marked the end of the Mesozoic Era?

In what Epoch did the age of mammals begin?

In what epoch did complex human societies develop?

The largest unit of geologic time is called...

Many of the fossils that have been discovered in the oilser layers have been ______ for millions of years.

An eon is divided into smaller units of geologic time called...

The first era of the Phanerozoic Eon was the...