Classopollis |
Classopollis obidosensis
|
Wyoming |
Callovian |
Oxfordian |
Concavisporites |
Concavisporites hexagonalis
|
South Dakota |
Callovian |
Oxfordian |
Concavisporites |
Concavisporites hexagonalis
|
Wyoming |
Callovian |
Oxfordian |
Concavisporites |
Concavisporites polygonalis
|
South Dakota |
Callovian |
Oxfordian |
Concavisporites |
Concavisporites polygonalis
|
Wyoming |
Callovian |
Oxfordian |
Concavisporites |
Concavisporites sp
|
South Dakota |
Callovian |
Oxfordian |
Concavisporites |
Concavisporites sp
|
Wyoming |
Callovian |
Oxfordian |
Concavisporites |
Concavisporites subgranulosus
|
South Dakota |
Callovian |
Oxfordian |
Concavisporites |
Concavisporites subgranulosus
|
Wyoming |
Callovian |
Oxfordian |
Concavisporites |
Concavisporites undulatus
|
South Dakota |
Callovian |
Oxfordian |
Concavisporites |
Concavisporites undulatus
|
Wyoming |
Callovian |
Oxfordian |
Contignisporites |
Contignisporites problematicus
sp. nov. |
South Dakota |
Callovian |
Oxfordian |
Contignisporites |
Contignisporites problematicus
sp. nov. |
Wyoming |
Callovian |
Oxfordian |
Contignisporites |
Contignisporites sp
|
South Dakota |
Callovian |
Oxfordian |
Contignisporites |
Contignisporites sp
|
Wyoming |
Callovian |
Oxfordian |
Coronatispora |
Coronatispora valdensis
|
South Dakota |
Callovian |
Oxfordian |
Coronatispora |
Coronatispora valdensis
|
Wyoming |
Callovian |
Oxfordian |