Simplotheca |
Simplotheca silesiaca
|
Germany |
Namurian A |
|
Spencerisporites |
Spencerisporites
|
Nd |
Nd |
|
Spencerites |
Spencerites
|
Nd |
Nd |
|
Spencerites |
Spencerites insignis
|
England |
Westphalian A |
|
Spencerites |
Spencerites majusculus
|
England |
Westphalian A |
|
Sphaerostoma |
Sphaerostoma ovale
|
Scotland |
Early Carboniferous |
|
Sphenobaiera |
Sphenobaiera furcata
|
Germany |
Triassic |
|
Sphenophyllostachys |
Sphenophyllostachys bifurcatus
|
Illinois |
Middle Pennsylvanian |
Late Pennsylvanian |
Sphenophyllostachys |
Sphenophyllostachys delectus
|
Michigan |
Early Pennsylvanian |
|
Sphenophyllum |
Sphenophyllum aquensis
|
Germany |
Westphalian B |
|
Sphenophyllum |
Sphenophyllum beinerti
|
Germany |
Westphalian A |
|
Sphenophyllum |
Sphenophyllum dawsoni
|
France |
|
|
Sphenophyllum |
Sphenophyllum fertile
|
England |
Nd |
|
Sphenophyllum |
Sphenophyllum hauchecornei
|
Germany |
Westphalian B |
|
Sphenophyllum |
Sphenophyllum majus
|
Nd |
Nd |
|
Sphenophyllum |
Sphenophyllum oblongifolium
|
France |
Nd |
|
Sphenophyllum |
Sphenophyllum stimulosus
|
Nd |
Late Carboniferous |
|