Rugubivesiculites |
Rugubivesiculites woodbinensis
|
Iowa |
Middle Cenomanian |
|
Sabalpollenites |
Sabalpollenites conspicuus
|
Minnesota |
Cenomanian |
|
Sabalpollenites |
Sabalpollenites minisculus
|
Oklahoma |
Cenomanian |
|
Sabalpollenites |
Sabalpollenites scabrus
|
Iowa |
Cenomanian |
|
Schizocystia |
Schizocystia rugosa
|
Iowa |
Middle Cenomanian |
|
Schizophacus |
Schizophacus majusculus
|
Iowa |
Early Cenomanian |
Middle Cenomanian |
Schizophacus |
Schizophacus majusculus
|
Oklahoma |
Cenomanian |
|
Schizosporis |
Schizosporis
|
Iowa |
Early Cenomanian |
Middle Cenomanian |
Schizosporis |
Schizosporis rugulatus
|
Nd |
Nd |
|
Scortea |
Scortea tecta
|
Iowa |
Early Cenomanian |
|
Senectotetradites |
Senectotetradites varireticulatus
|
Iowa |
Middle Cenomanian |
|
Sestrosporites |
Sestrosporites pseudoalveolatus
|
Iowa |
Early Cenomanian |
Middle Cenomanian |
Spermatites |
Spermatites piperiformis
|
Iowa |
Middle Cenomanian |
|
Sphagnum |
Sphagnum regium
|
Iowa |
Middle Cenomanian |
|
Sphagnum |
Sphagnum regium
|
USSR(WSL) |
Paleocene |
|
Stellatopollis |
Stellatopollis largissimus
|
Iowa |
Middle Cenomanian |
|
Stephanocolpites |
Stephanocolpites
|
Nd |
Nd |
|