| A brief conspectus of American coal ball studies |
Andrews, H.N., Jr.; and Mamay, S.H. |
Palaeobotanist vol. 1, pp. 66-72 |
1952 |
N/A
|
| A new bowmanitean fructification from the Pennsylvanian of Kansas |
Mamay, S.H. |
American Journal of Botany vol. 46, no. 7, pp. 530-536 |
1959 |
N/A
|
| Archaeocycas and Phasmatocycas; new genera of Permian cycads |
Mamay, S.H. |
U.S. Geological Survey, Journal of Research vol. 1, no. 6, pp. 687-689 |
1973 |
N/A
|
| Cycads; fossil evidence of late Paleozoic origin |
Mamay, S.H. |
Science new series, vol. 164, no. 3877, pp. 295-296 |
1969 |
N/A
|
| New Lower Permian plants, p. A118, <In>, Geological Survey Research 1968, Chapter A |
Mamay, S.H., (invest.) |
U.S. Geological Survey, Professional Paper no. 600-A, 371 pages |
1968 |
N/A
|
| Sandrewia n. gen., a problematical plant from the Lower Permian of Texas and Kansas |
Mamay, S.H. |
Review of Palaeobotany and Palynology vol. 20, no. 1/2, pp. 75-83 |
1975 |
N/A
|
| The enigmatic Paleozoic plants Spermopteris and Phasmatocycas reconsidered |
Axsmith, B.J.; Serbet, Rudolph; Krings, Michael; Taylor, T.N.; Taylor, E.L.; and Mamay, S.H. |
American Journal of Botany vol. 90, no. 11, pp. 1585-1595 |
2003 |
N/A
|
| Two new plant genera of Pennsylvanian age from Kansas coal balls |
Mamay, S.H. |
U.S. Geological Survey, Professional Paper no. 254-D, pp. 81-95 |
1954 |
N/A
|