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| Author | Topic: The great extinctions in geologic history | |||||||||||||
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TrueCreation Inactive Member |
What evidence is there that these impacts did indeed have to happen only during the Permian-Triasic, and other geologic periods, and not other periods in geologic time? Besides that we see declines in animal populations after certain periods in the geologic column as most people would indicate as 'extinctions'.
-------------  [This message has been edited by TrueCreation, 01-03-2002]
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