original |
Late Devonian |
|
Canada(Alberta) |
Hoffmeister,W.S. et al. Geologic range of Paleozoic plant spores in North America |
1955 |
original |
Late Devonian |
|
Canada(Alberta) |
Hoffmeister,W.S. et al. Geologic range of Paleozoic plant spores in North America |
1955 |
original |
Late Devonian |
|
Canada(Alberta) |
Hoffmeister,W.S. et al. Geologic range of Paleozoic plant spores in North America |
1955 |
original |
Nd |
|
Texas |
Hoffmeister,W.S. et al. Geologic range of Paleozoic plant spores in North America |
1955 |
original |
Nd |
|
Oklahoma |
Hoffmeister,W.S. et al. Geologic range of Paleozoic plant spores in North America |
1955 |