History of 1e15 s

	Revision 6 . . November 26, 2001 2:44 pm by Eob [more periods]
	Revision 5 . . November 26, 2001 2:36 pm by Eob [Jurassic]
	Revision 4 . . (edit) November 26, 2001 2:32 pm by Eob
	Revision 3 . . (edit) November 26, 2001 2:32 pm by Eob
	Revision 2 . . November 26, 2001 9:58 am by Eob [Cretaceous-Tertiary extinction event]
	Revision 1 . . November 26, 2001 9:55 am by Eob [Oligocene - Eocene]

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Difference (from prior major revision) (no other diffs)

Added: 10a11,16

* 195 million years -- time since beginning of Jurassic Period * 195 million years -- time since end of Triassic Period * 225 million years -- time since beginning of Triassic Period (beginning of Mesozoic Era) * 225 million years -- time since end of Permiam? Period (end of Palaeozoic Era) * 280 million years -- time since beginning of Permiam? Period * 280 million years -- time since end of Carboniferous Period