History of Life on Earth

In which time period are we currently living?

Which fossil is the youngest?

Uses the decay of radioactive elements to find the ___________________________ of a rock or fossil.

These specialized fossils indicate to geologists the boundaries in geological time and determine the age of rocks.

This chronological time chart is broken into different time chunks, the largest being the Eon, then Era, Period, and Epoch.

History of life as documented by all fossils, preserved in sedimentary rock strata is known as the _________________________.

Preserved remains of plant and animals from the remote past are called _______________.

The end of life for a group of organisms, usually a species, is called a(n) ________________.

What division of time was the longest ?

What era did dinosaurs go extinct ?