6.1 Geologic Eras Flashcards

Front

Are all geologic eras the same length of time?

Back

False

Front

The periods of the Paleozoic era are:

Back

Cambrian, Ordovician, Silurian, Devonian, Carboniferous, Permian

Front

The periods of the Mesozoic era are

Back

Triassic, Jurassic, Cretaceous

Front

Life began to increase in diversity around ______ million years ago.

Back

600

Front

Which is the longest geologic era?

Back

Precambrian

Front

Which era is known as the 'Age of Reptiles'?

Back

Mesozoic

Front

During which era did mammals become the dominant land animals?

Back

Cenozoic