original |
Nd |
|
Oklahoma |
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 |
Carboniferous |
|
Texas |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 1 |
1956 |
original |
Carboniferous |
|
Oklahoma |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 1 |
1956 |
original |
Nd |
|
Nd |
McGregor,D.C. Lower and Middle Devonian spores of eastern Gaspe, Canada.1.Systematics. |
1973 |