What is an era in geology?
Q: What is an era in geology?
A: An era in geology is a time period that spans several hundred million years and is made up of a long series of rock strata which are given a name.
Q: Can you give an example of an era?
A: Yes, the Mesozoic era is an example of an era in geology.
Q: Are eras made up of periods?
A: Yes, eras are made up of periods in geology.
Q: How many eras make up an eon?
A: Several eras make up an eon.
Q: When did the Phanerozoic eon start?
A: The Phanerozoic eon started about 541 million years ago (mya).
Q: What are the three eras that make up the Phanerozoic eon?
A: The three eras that make up the Phanerozoic eon are the Paleozoic era, the Mesozoic era, and the Cainozoic era.
Q: What is the meaning of the Greek word for the Paleozoic era?
A: The Greek word for the Paleozoic era means "oldest life."
