| A new species of Codontheca (Medullosaceae, Pteridospermales) from the Upper Pennsylvanian of Kansas, pp. 155-158, <In>, Dutro, J.T., Jr.; and Pfefferkorn, H.W., (eds); Paleontology, paleoecology, paleogeography |
Stidd, B.M.; and Leisman, G.A. |
International Congress of Carboniferous Stratigraphy and Geology, Abstracts of Papers vol. 5, 550 pages |
1985 |
N/A
|
| A new species of the pollen organ Codontheca (Medullosaceae, Pteridospermales) from the Tonganozie [sic] sandstone, Virgilian Series, near Ottawa, Kansas, (abstr.) |
Stidd, B.M.; and Leisman, G.A. |
International Congress of Carboniferous Stratigraphy and Geology, Abstracts of Papers pp. 208-209 |
1979 |
N/A
|
| Further occurrences of Spencerites from the Middle Pennsylvanian of Kansas and Illinois |
Leisman, G.A.; and Stidd, B.M. |
American Journal of Botany vol. 54, no. 3, pp. 316-323 |
1967 |
N/A
|
| Sullitheca dactylifera gen. et sp. n.; a new medullosan pollen organ and its evolutionary significance |
Stidd, B.M.; Leisman, G.A.; and Phillips, T.L. |
American Journal of Botany vol. 64, no. 8, pp. 994-1002 |
1977 |
N/A
|