Read Edit View history 太古宙 tàigǔzhòu Archaean Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 太古宙 tàigǔzhòu Archaean the Archean geological eon, spanning from roughly 4,000 to 2,500 million years ago Edit Delete References Add reference No references for this word.
太古宙 tàigǔzhòu Archaean the Archean geological eon, spanning from roughly 4,000 to 2,500 million years ago Edit Delete