| details |
Early Pennsylvanian |
|
Indiana |
Wood,J.M. The morphology and relationships of Sigillarian fructifications from the Lower Pennsylvanian of Indiana. |
1957 |
| details |
Early Pennsylvanian |
|
Indiana |
Potonie,R. Fossil sporae in situ. Comparison with the sporae dispersae. Addition to the synopsis of the sporae in situ. |
1965 |
| details |
Late Carboniferous |
|
Indiana |
Boureau,E. et al. Paleobotanical Treatise. 2. Bryophyta, Psilophyta, Lycophyta. |
1968 |
| details |
Late Carboniferous |
|
Kansas |
Boureau,E. et al. Paleobotanical Treatise. 2. Bryophyta, Psilophyta, Lycophyta. |
1968 |
| details |
Carboniferous |
|
USA |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |