Sawdonia |
Sawdonia acanthotheca
|
USA |
Devonian |
|
Schizaeopsis |
Schizaeopsis americana
|
USA |
Cretaceous |
|
Schizaeopsis |
Schizaeopsis expansa
|
USA |
Cretaceous |
|
Schizoneura |
Schizoneura harrisii
|
USA |
Triassic |
|
Schopfiangium |
Schopfiangium varijugatus
|
USA |
Carboniferous |
|
Schopfitheca |
Schopfitheca boulayoides
|
USA |
Carboniferous |
|
Schulzospora |
Schulzospora rara
|
USA |
Late Carboniferous |
|
Scolecopteris |
Scolecopteris altissemus
|
USA |
Carboniferous |
|
Scolecopteris |
Scolecopteris altus
|
USA |
Carboniferous |
|
Scolecopteris |
Scolecopteris calicifolia
|
USA |
Carboniferous |
|
Scolecopteris |
Scolecopteris charma
|
USA |
Carboniferous |
|
Scolecopteris |
Scolecopteris gnoma
|
USA |
Carboniferous |
|
Scolecopteris |
Scolecopteris iowensis
|
USA |
Carboniferous |
|
Scolecopteris |
Scolecopteris macrospora
|
USA |
Carboniferous |
|
Scolecopteris |
Scolecopteris majopsis
|
USA |
Carboniferous |
|
Scolecopteris |
Scolecopteris major
|
USA |
Carboniferous |
|
Scolecopteris |
Scolecopteris monothrix
|
USA |
Carboniferous |
|