Triletes |
Triletes difficilis
|
Nd |
Nd |
|
Triletes |
Triletes fermii
|
Nd |
Nd |
|
Triletes |
Triletes mamillarius
|
Nd |
Nd |
|
Triletes |
Triletes mamillarius
|
Nd |
Nd |
|
Triletes |
Triletes mamillarius
|
Nd |
Nd |
|
Triletes |
Triletes nodosus
|
Nd |
Nd |
|
Triletes |
Triletes pertuberosus
|
Nd |
Nd |
|
Triletes |
Triletes sextus
|
Nd |
Nd |
|
Triletes |
Triletes subfuscus
|
Poland |
Early Westphalian C |
|
Triletes |
Triletes tuberosus
|
Nd |
Nd |
|
Triletes |
Triletes valens
|
Nd |
Nd |
|
Tuberculatisporites |
Tuberculatisporites
|
Europe |
Namurian |
Stephanian |
Tuberculatisporites |
Tuberculatisporites
|
USSR(Ukrainian SSR) |
Namurian |
Stephanian |
Tuberculatisporites |
Tuberculatisporites
|
USA(Appalachian Bn.) |
Namurian |
Stephanian |
Tuberculatisporites |
Tuberculatisporites
|
Illinois |
Namurian |
Stephanian |
Tuberculatisporites |
Tuberculatisporites
|
Michigan |
Namurian |
Stephanian |
Tuberculatisporites |
Tuberculatisporites apiculatus
|
Nd |
Nd |
|