geological era

A geological era is a major division of Earth's history, spanning tens to hundreds of millions of years, characterized by significant and distinguishable changes in the planet's climate, life forms, and geology.

Aliases (3)

• geologic era ×4
• subdivision of the Proterozoic Eon ×3
• eonothem/era in the geologic time scale ×1

Instances (10)

• Paleozoic Era ("geologic era")
• Cenozoic
• Paleoproterozoic Era ("geologic era")
• Mesoproterozoic Era ("geologic era")
• Neoproterozoic Era ("geologic era")
• Mesozoic Era