Paleoproterozoic
Meanings
Proper Noun
- The era from 2,500 Ma to 1,600 Ma, marked by a dramatic increase in atmospheric oxygen.
Adjective
- Of a geologic era within the Proterozoic eon from 2,500 to 1,600 million years ago.
Related
Narrower meaning words
Broader meaning words
- Precambrian - eon/supereon, Proterozoic - eon
Origin
- paleo- + Proterozoic
Modern English dictionary
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