Apiculatisporis |
Apiculatisporis irregularis
|
England(Northumberland) |
Late Westphalian B |
|
Apiculatisporis |
Apiculatisporis irregularis
|
Iowa |
Westphalian A |
Westphalian B |
Apiculatisporis |
Apiculatisporis irregularis
|
Illinois |
Westphalian D |
|
Cappasporites |
Cappasporites distortus
|
Nd |
Nd |
|
Cappasporites |
Cappasporites distortus
|
England(Northumberland) |
Late Westphalian B |
|
Cappasporites |
Cappasporites distortus
|
Iowa |
Westphalian A |
Westphalian B |
Cappasporites |
Cappasporites distortus
|
Illinois |
Westphalian D |
|
Crassispora |
Crassispora plicata
|
England(Northumberland) |
Late Westphalian B |
|
Crassispora |
Crassispora plicata
|
Iowa |
Westphalian A |
Westphalian B |
Crassispora |
Crassispora plicata
|
Illinois |
Westphalian D |
|
Granasporites |
Granasporites
|
France |
Early Stephanian |
|
Granasporites |
Granasporites irregularis
|
England(Northumberland) |
Late Westphalian B |
|
Granasporites |
Granasporites irregularis
|
Iowa |
Westphalian A |
Westphalian B |
Granasporites |
Granasporites irregularis
|
Illinois |
Westphalian D |
|
Granasporites |
Granasporites medius
|
England(Northumberland) |
Late Westphalian B |
|
Granasporites |
Granasporites medius
|
Iowa |
Westphalian A |
Westphalian B |
Granasporites |
Granasporites medius
|
Illinois |
Westphalian D |
|