Paleozoic Era

The longest Era was...

• Precambrian
• Paleozoic
• Mesozoic
• Cenozoic

The single land mass that existed about 245 million years ago is named what?

• Fossil
• Pangea
• Bob
• Tectonic plates

Trilobites are found in the _____________.

• Cenozoic
• Mesozoic
• Paleozoic
• Cretaceous

What era was the age of fish?

• Precambrian
• Palezoic
• Mesozoic
• Cenozoic

How old is the Earth?

• 46 billion years
• 4 billion years
• .46 billion years
• 4.6 billion years

According to Wegener's hypothesis of continental drift,

• Earth's surface is made up of seven major landmasses
• the continents DO NOT move.
• Earth is slowly cooling and shrinking.
• the continents were once joined together in a single landmass

Near the end of the Paleozoic era reptiles became dominant. 

• True
• False

The Paleozoic BEGAN with early invertebrates.

• True
• False

After Precambrian time, Earth's history is divided into three eras, beginning with the

• Paleozic Era
• Mesozoic Era
• Cenozoic Era

Trilobites were dominate organisms during which geologic era

• Precambrian 
• Paleozoic
• Mesozoic 
• Cenozoic