Stephanocolpites |
Stephanocolpites tectorius
|
Iowa |
Middle Cenomanian |
|
Stereigranisporis |
Stereigranisporis pulvinulatus
|
Spitsbergen |
Late Paleocene |
Eocene |
Stereigranisporis |
Stereigranisporis regius
|
Iowa |
Middle Cenomanian |
|
Stereigranisporis |
Stereigranisporis regius
|
USSR(WSL) |
Paleocene |
|
Stereisporites |
Stereisporites psilatus
|
Iowa |
Late Albian |
Cenomanian |
Stereisporites |
Stereisporites regius
|
Nd |
Nd |
|
Striatriletes |
Striatriletes coronarius
|
Iowa |
Middle Cenomanian |
|
Striatriletes |
Striatriletes coronarius
|
Minnesota |
Cenomanian |
|
Striatriletes |
Striatriletes striatus
|
Nd |
Nd |
|
Taurocusporites |
Taurocusporites segmentatus
|
Iowa |
Early Cenomanian |
|
Tigrisporites |
Tigrisporites reticulatus
|
Iowa |
Middle Cenomanian |
|
Trichodinium |
Trichodinium sp
|
Iowa |
Middle Cenomanian |
|
Tricolpites |
Tricolpites nemejcii
|
Iowa |
Middle Cenomanian |
|
Tricolpites |
Tricolpites patens
|
Iowa |
Middle Cenomanian |
|
Tricolpites |
Tricolpites vulgaris
|
Iowa |
Late Albian |
Cenomanian |
Triporoletes |
Triporoletes cenomanianus
|
Iowa |
Early Cenomanian |
Middle Cenomanian |
Triporoletes |
Triporoletes pluricellulus
|
Iowa |
Early Cenomanian |
|