Paleoproterozoic

形容词 adj. 专有名词
中文释义

英文释义

形容词 adj.
  1. Of a geologic era within the Proterozoic eon from 2,500 to 1,600 million years ago. not-comparable
专有名词
  1. The era from 2,500 Ma to 1,600 Ma, marked by a dramatic increase in atmospheric oxygen.

词源

词源 1
Etymology tree
Ancient Greek πᾰλαιός (pălaiós)der.
English paleo-
English Proterozoic
English Paleoproterozoic
From paleo- + Proterozoic.
词源 2
Etymology tree
Ancient Greek πᾰλαιός (pălaiós)der.
English paleo-
English Proterozoic
English Paleoproterozoic
From paleo- + Proterozoic.
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