| details |
Middle Pennsylvanian |
|
Illinois |
Kurmann,M.H. et al. Comparative ultrastructure of Sphenophyte spores Elaterites and Equisetum |
1984 |
| details |
Desmoinesian |
|
Illinois |
Peppers,R.A. Correlation and palynology of coals in the Carbondale and Spoon Formations (Pennsylvanian) of the northeastern part of the Illinois Basin. |
1970 |
| details |
Pennsylvanian |
|
Illinois |
Good,C.W. et al. The morphology and systematic position of Calamitean elater-bearing spores. |
1975 |
| details |
Pennsylvanian |
|
Illinois |
Good,C.W. et al. The establishment of Elaterites triferens spores in Calamocarpon insignis microsporangia |
1974 |
| details |
Westphalian D |
|
England(Staffordshire) |
Turner,N. The occurrence of Elaterites triferens Wilson 1943 in miospore assemblages from Coal Measures of Westphalian D age, North Staffordshire, England. |
1991 |
| details |
Carboniferous |
|
California |
Kedves,M. Tranmission Electron Microscopy of the Fossil Spores. |
1996 |