Paleoproterozoic

Origin

- + paleo + Proterozoic

Full definition of Paleoproterozoic

Proper noun

1. (geology) The era from 2,500 Ma to 1,600 Ma, marked by a dramatic increase in atmospheric oxygen.

Hypernyms

• (era 2,500-1,600 Ma) Precambrian - eon/supereon, Proterozoic - eon

Hyponyms

• (era 2,500-1,600 Ma) Siderian, Rhyacian, Orosirian, Statherian - systems/periods

Coordinate terms

• (era 2,500-1,600 Ma) Mesoproterozoic, Neoproterozoic - eras

Adjective

1. (geology) Of a geologic era within the Proterozoic eon from 2,500 to 1,600 million years ago.