Spencerites |
Spencerites insignis
|
Nd |
Carboniferous |
|
Spencerites |
Spencerites majusculus
|
Nd |
Carboniferous |
|
Sphenophyllum |
Sphenophyllum emarginatum
|
Nd |
Carboniferous |
|
Sphenophyllum |
Sphenophyllum fertile
|
Nd |
Carboniferous |
|
Sphenophyllum |
Sphenophyllum hauchecornei
|
Nd |
Carboniferous |
|
Sphyropteris |
Sphyropteris boehnischi
|
Nd |
Carboniferous |
|
Sporangiostrobus |
Sporangiostrobus ohioensis
|
Nd |
Carboniferous |
|
Stephanospermum |
Stephanospermum akenioides
|
Nd |
Carboniferous |
|
Telangium |
Telangium bifidum
|
Nd |
Carboniferous |
|
Thuringia |
Thuringia callipteroides
|
Nd |
Carboniferous |
|
Thymospora |
Thymospora
|
Nd |
Carboniferous |
|
Todisporites |
Todisporites
|
Nd |
Mesozoic |
|
Todites |
Todites princeps
|
Nd |
Mesozoic |
|
Todites |
Todites williamsonii
|
Nd |
Mesozoic |
|
Triquitrites |
Triquitrites
|
Nd |
Mesozoic |
|
Tristachya |
Tristachya crockensis
|
Nd |
Carboniferous |
|
Ullmannia |
Ullmannia frumentaria
|
Nd |
Carboniferous |
|