History of Life on Earth

The largest division of the geologic time scale is the _______.

The Mesozoic Era was the Age of Reptiles while the current

Cenozoic Era is the Age of ________.

The layers in sedimentary rocks are also called _______.

The movie “Jurassic Park” got its title from which era?

During which era were the first land plants formed?

The era of middle life, was a time of many changes on Earth.

What is the longest part of Earth’s history where trace fossils appeared?

The geologic time scale is subdivided into 4 groups. List them

from the largest to the smallest.

The end of this era was believed to be caused by a comet or asteroid colliding with Earth, causing a huge cloud of dust and smoke to rise into the atmosphere, blocking out the sun..

Which geologic event occurred during the Mesozoic era?