Schulzospora |
Schulzospora campyloptera
|
Oklahoma |
Late Chesterian |
|
Schulzospora |
Schulzospora campyloptera
|
Oklahoma |
Late Mississippian |
|
Schulzospora |
Schulzospora campyloptera
|
Oklahoma |
Early Pennsylvanian |
|
Schulzospora |
Schulzospora campyloptera
|
Oklahoma |
Late Chesterian |
Springerian |
Schulzospora |
Schulzospora campyloptera
|
Arkansas |
Late Chesterian |
Springerian |
Schulzospora |
Schulzospora campyloptera
|
Europe |
Namurian A |
|
Schulzospora |
Schulzospora elongata
|
Oklahoma |
Springerian |
|
Schulzospora |
Schulzospora elongata
|
Oklahoma |
Late Chesterian |
Springerian |
Schulzospora |
Schulzospora elongata
|
Arkansas |
Late Chesterian |
Springerian |
Schulzospora |
Schulzospora elongata
|
Europe |
Namurian A |
|
Secarisporites |
Secarisporites remotus
|
Arkansas |
Early Pennsylvanian |
|
Secarisporites |
Secarisporites remotus
|
Oklahoma |
Late Mississippian |
|
Secarisporites |
Secarisporites remotus
|
Oklahoma |
Early Pennsylvanian |
|
Secarisporites |
Secarisporites remotus
|
Europe |
Namurian A |
Namurian C |
Spelaeotriletes |
Spelaeotriletes arenaceus
|
Arkansas |
Springerian |
|
Spelaeotriletes |
Spelaeotriletes arenaceus
|
Oklahoma |
Springerian |
|
Spelaeotriletes |
Spelaeotriletes arenaceus
|
Europe |
Namurian A |
Namurian B |