Savitrisporites |
Savitrisporites concavus
|
Kentucky |
Late Atokan |
|
Savitrisporites |
Savitrisporites nux
|
Indiana |
Early Atokan |
|
Savitrisporites |
Savitrisporites nux
|
Illinois |
Late Morrowan |
Early Atokan |
Savitrisporites |
Savitrisporites nux
|
Arkansas |
Late Morrowan |
|
Savitrisporites |
Savitrisporites nux
|
Kentucky |
Morrowan |
Late Atokan |
Savitrisporites |
Savitrisporites nux
|
Tennessee |
Late Morrowan |
Atokan |
Schulzospora |
Schulzospora
|
Iowa |
Westphalian A |
|
Schulzospora |
Schulzospora rara
|
Indiana |
Early Morrowan |
|
Schulzospora |
Schulzospora rara
|
Arkansas |
Late Morrowan |
|
Schulzospora |
Schulzospora rara
|
Kentucky |
Morrowan |
|
Schulzospora |
Schulzospora rara
|
West Virginia |
Late Morrowan |
|
Schulzospora |
Schulzospora rara
|
Tennessee |
Late Morrowan |
|
Secarisporites |
Secarisporites remotus
|
Kentucky |
Late Morrowan |
|
Simozonotriletes |
Simozonotriletes intortus
|
Kentucky |
Late Atokan |
|
Simozonotriletes |
Simozonotriletes intortus
|
Tennessee |
Early Atokan |
|
Sinuspores |
Sinuspores sinuatus
|
Tennessee |
Late Morrowan |
Atokan |
Spackmanites |
Spackmanites habibii
|
Indiana |
Early Atokan |
|