A list of 4 words by hegpeg.
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- Phanerozoic1296450023and appears on 2 listswas added by hegpeg and appears on 2 lists
- Proterozoic1296450009and appears on 2 listswas added by hegpeg and appears on 2 lists
- Archaen1296449982and appears on just this listwas added by hegpeg and appears on just this list
- Hadean1296449964and appears on 3 listswas added by hegpeg and appears on 3 lists
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hegpeg commented on the list geologic-timescale--eon
Hadean, Archaen, and Proterozoic are also known together as 'Precambrian' or 'before life'.
January 31, 2011