Protominosoidea |
Protominosoidea buchananensis
|
USA |
Eocene |
|
Protopteridium |
Protopteridium hostinense
|
USA |
Devonian |
|
Protopteridium |
Protopteridium thomsonii
|
USA |
Devonian |
|
Protosalvinia |
Protosalvinia bilobata
|
USA |
Devonian |
|
Protosalvinia |
Protosalvinia braziliensis
|
USA |
Devonian |
|
Protosalvinia |
Protosalvinia furcata
|
USA |
Devonian |
|
Protosalvinia |
Protosalvinia ravenna
|
USA |
Devonian |
|
Ptilophyton |
Ptilophyton thomsonii
|
USA |
Devonian |
|
Ptychocarpus |
Ptychocarpus sp
|
USA |
Carboniferous |
|
Quercus |
Quercus spinosa
|
USA |
Oligocene |
|
Raistrickia |
Raistrickia grovensis
|
USA |
Late Carboniferous |
|
Rebuchia |
Rebuchia ovata
|
USA |
Devonian |
|
Rellimia |
Rellimia thomsonii
|
USA |
Devonian |
|
Retusotriletes |
Retusotriletes simplex
|
USA |
Middle Devonian |
|
Rhacophyton |
Rhacophyton ceratangium
|
USA |
Devonian |
|
Rhetinotheca |
Rhetinotheca patens
|
USA |
Carboniferous |
|
Rhetinotheca |
Rhetinotheca tetrasolenata
|
USA |
Carboniferous |
|