Ruffordia |
Ruffordia goeppertii
|
England |
Wealden |
|
Schizaeaceae |
Schizaeaceae
|
Nd |
Nd |
|
Schizaeopsis |
Schizaeopsis americana
|
Nd |
Nd |
|
Schopfipollenites |
Schopfipollenites
|
Nd |
Nd |
|
Schuetzia |
Schuetzia bennieana
|
England |
Carboniferous |
|
Scolecopteris |
Scolecopteris illinoensis
|
Illinois |
Late Pennsylvanian |
|
Scolecopteris |
Scolecopteris monothrix
|
Illinois |
Desmoinesian |
Virgilian |
Scolecopteris |
Scolecopteris polymorpha
|
England |
|
|
Selaginella |
Selaginella
|
Nd |
Nd |
|
Selaginellites |
Selaginellites crassicinctus
|
Kansas |
Desmoinesian |
|
Selaginellites |
Selaginellites suissei
|
Nd |
Westphalian B |
|
Sigillaria |
Sigillaria sp
|
Nd |
Nd |
|
Sigillariaceae |
Sigillariaceae
|
Nd |
Nd |
|
Sigillariostrobus |
Sigillariostrobus quadrangularis
|
Indiana |
Early Pennsylvanian |
|
Sigillariostrobus |
Sigillariostrobus rhombibracteatus
|
Nd |
Nd |
|
Spencerisporites |
Spencerisporites gracilis
|
Nd |
Nd |
|
Spencerisporites |
Spencerisporites radiatus
|
Nd |
Nd |
|