WikiPedia: History of GeologicTimescale

Difference (from prior major revision) (minor diff)

Changed: 1c1

Numbers refer to end of time period, in millions of years before now. Is there a better way to format this?

Numbers refer to end of time period, in millions of years before now.

Added: 4a5,7

PleistoceneEpoch? (=Quaternary)
1.8 PlioceneEpoch?
5 MioceneEpoch?

Added: 5a9,11

OligoceneEpoch?
38 EoceneEpoch?
54 PalaeoceneEpoch?

Changed: 7c13

CretaceousPeriod?

Changed: 12,17c18,27

290 CarboniferousPeriod?
363 DevonianPeriod?
409 SilurianPeriod?
439 OrdovicianPeriod?
510 CambrianPeriod?
570 PrecambrianEra?

286 CarboniferousPeriod?
UpperCarboniferous? (=Pennsylvanian)
325 LowerCarboniferous? (=Mississippian)
360 DevonianPeriod?
410 SilurianPeriod?
440 OrdovicianPeriod?
505 CambrianPeriod?
544 ProterozoicEra? |
2500 ArchaeanEra? | PrecambrianEon? (as opposed to PhanerozoicEon?)
3800 HadeanEra? |

	Revision 4 . . (edit) February 16, 2001 12:28 pm by JoshuaGrosse
	Revision 3 . . (edit) February 16, 2001 12:28 pm by JoshuaGrosse
	Revision 2 . . February 15, 2001 9:07 am by JoshuaGrosse [Is there a better way to format trees?]
	Revision 1 . . February 15, 2001 9:07 am by JoshuaGrosse