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Paleogeography of North America
From 560 Milliopn Years Ago to Today
Images by:
Dr. Ron Blakey
Professor of Geology
Northern Arizona University
http://jan.ucc.nau.edu/~rcb7/RCB.html(All images © Ron Blakey)
Images incorporated into
Powerpoint by Steve Perrin
http://www-personal.umich.edu/~sperrin/gallery.html
With additional graphics by Mike Haller
North
South Pole
View
560 MaMillion years ago
Late Precambrian 550 Ma (Million Years Ago)
Equator
550 MaMillion years ago
Middle Cambrian 510 Ma
510 Ma
Late Cambrian 500 Ma
Equator
Southern
Hemisphere
500 Ma
Early Ordovician 485 Ma
485 Ma
Middle Ordovician 470 Ma
470 Ma
Late Ordovician 450 Ma
450 Ma
Early Silurian 430 Ma
430 Ma
Late Silurian 420 Ma
420 Ma
Early Devonian 400 Ma
400 Ma
Middle Devonian 385 Ma
Equator
Southern
Hemisphere
385 Ma
370 Ma
Late Devonian360 Ma
360 Ma
370 Ma
Early Mississippian 345 Ma
345 Ma
340 Ma
Late Mississippian 325 Ma
325 Ma
Early Pennsylvanian 315 Ma
315 Ma
Late Pennsylvanian 300 Ma
300 Ma
Early Permian 290 Ma
290 Ma
Middle Permian 275 Ma
275 Ma
280 Ma
Late Permian 260 Ma
260 Ma
Early Triassic 245 Ma
245 Ma
240 Ma
Middle Triassic 230 Ma
230 Ma
Late Triassic 210 Ma
210 Ma
220 Ma
Early Jurassic 195 Ma
195 Ma
200 Ma
Early Jurassic 180 Ma
180 Ma
Middle Jurassic 170 Ma
170 Ma
Late Jurassic 150 Ma
150 Ma
Early Cretaceous 140 Ma
140 Ma
Early Cretaceous 130 Ma
130 Ma
Early Cretaceous 115 Ma
115 Ma
120 Ma
Late Cretaceous 100 Ma
100 Ma
105 Ma
Late Cretaceous 85 Ma
85 Ma
90 Ma
Late Cretaceous 75 Ma
75 Ma
Cretaceous-Tertiary 65 Ma
65 Ma
Paleogene Paleocene 60 Ma
60 Ma
Paleogene Eocene 50 Ma
50 Ma
Paleogene Eocene 40 Ma
40 Ma
35 Ma
Paleogene Oligocene 25 Ma
25 Ma
20 Ma
Neogene Miocene 15 Ma
15 Ma
Neogene Miocene 8 Ma
8 Ma
Neogene Pliocene 3 Ma
3 Ma
Quaternary Glacial 126,000 Years Ago
.125 Ma
Present
Today
Description