| details |
Desmoinesian |
|
Kansas |
Wilson,L.R. Elaterites Triferens from a Kansas Coal Ball |
1963 |
| original |
Desmoinesian |
|
Iowa |
Wilson,L.R. Elater-bearing spores from the Pennsylvanian strata of Iowa |
1943 |
| details |
Carboniferous |
|
Nd |
Taylor,N.N. et al. Studies of Carboniferous and extant Elater-bearing spores. |
1973 |
| details |
Carboniferous |
|
USA |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |
| details |
Carboniferous |
|
California |
Kedves,M. Tranmission Electron Microscopy of the Fossil Spores. |
1996 |
| details |
Atokan |
|
Iowa |
Ravn,R.L. Palynostratigraphy of the Lower and Middle Pennsylvanian Coals of Iowa |
1986 |