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paleozoic era
subjectfact 
paleozoic erahas duration 370 million years2001-09-27 09:29:59.0
has start time 600 million years ago2001-09-27 09:29:59.0
is a kind of geological era2001-09-27 09:29:59.0
eventhas synonym world point2001-09-27 09:29:57.0
has time of occurrence2001-09-27 09:29:57.0

Kinds of paleozoic era :