The second largest span of time recognized by geologists; smaller than a eon, larger than a period. We are currently in the Cenozoic era. Rocks of a specific era are called eratherms.
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« Back to Glossary Index
The second largest span of time recognized by geologists; smaller than a eon, larger than a period. We are currently in the Cenozoic era. Rocks of a specific era are called eratherms.
« Back to Glossary Index