2007-03-14 11:01:16 · 3 answers · asked by madison 2 in Science & Mathematics ➔ Earth Sciences & Geology
Mountaingym is right, except Stage refers to rock stratigraphy and Age refers to time.
Here's the chart from the Geological Society of America.
http://www.geosociety.org/science/timescale/timescl.pdf if you have Adobe reader, http://www.geosociety.org/science/timescale/timescl.htm for a low resolution hypertext gif.
Here's one more version. http://en.wikipedia.org/wiki/Geologic_timescale
2007-03-14 12:50:28 · answer #1 · answered by Now and Then Comes a Thought 6 · 1⤊ 0⤋
Era
Period
Epoch
Paleozoic
Pre-Cambrian
Cambrian
Ordovician
Silurian
Devonian
Carboniferous
Mississippian (North America)
Pennsylvanian (North America)
Permian
Mesozoic
Triassic
Carnian
Norian
Rhaeton
Jurassic
Hettangian
Sinemurian
Pliensbachian
Toarcian
Bajocian
Bathonian
Callovian
Oxfordian
Kimmeridgian
Portlandian
Purbeckian
Cretaceous
Ryazanian
Valanginian
Hauterivian
Barrenmian
Aptian
Albian
Cenomanian
Turonian
Coniacian
Santonian
Campanian
Maastrichtian
Cenozoic
Paleogene
Paleocene
Eocene
Oligocene
Neogene
Miocene
Pliocene
Quaternary
Pleistocene
Halocene
2007-03-14 18:09:45 · answer #2 · answered by bill45310252 5 · 2⤊ 0⤋
The most fundamental division is the Eon. Eons are divided up into Eras. Eras are divided up into Periods. Periods are divided up into Epochs. Epochs are divided up into Stages.
2007-03-14 18:49:18 · answer #3 · answered by Amphibolite 7 · 1⤊ 0⤋