Pulvinosphaeridium |
Pulvinosphaeridium parvum
|
New York |
Late Llandoverian |
|
Pulvinosphaeridium |
Pulvinosphaeridium pulvinellum
|
Sweden |
Late Llandoverian |
|
Pulvinosphaeridium |
Pulvinosphaeridium pulvinellum
|
Sweden |
Wenlockian |
|
Pulvinosphaeridium |
Pulvinosphaeridium pulvinellum
|
England |
Wenlockian |
|
Pulvinosphaeridium |
Pulvinosphaeridium pulvinellum
|
Canada(Quebec) |
Middle Llandoverian |
|
Pyxidiella |
Pyxidiella scrobiculata
|
Nd |
Nd |
|
Schizocystia |
Schizocystia laevigata
|
Australia(W.Australia) |
Late Albian |
Cenomanian |
Schizocystia |
Schizocystia rugosa
|
Australia(W.Australia) |
Late Albian |
Cenomanian |
Sporites |
Sporites tecta
|
Nd |
Nd |
|
Thysanoprobolus |
Thysanoprobolus polykion
|
Oklahoma |
Early Gedinnian |
|
Thysanoprobolus |
Thysanoprobolus polykion
|
Nd |
Nd |
|
Triangulina |
Triangulina alargada
|
Nd |
Nd |
|
Tunisphaeridium |
Tunisphaeridium caudatum
|
New York |
Late Llandoverian |
|
Tunisphaeridium |
Tunisphaeridium caudatum
|
Algeria |
Silurian |
|
Tunisphaeridium |
Tunisphaeridium evittii
|
Nd |
Nd |
|
Tunisphaeridium |
Tunisphaeridium parvum
|
Indiana |
Late Llandoverian |
|
Tunisphaeridium |
Tunisphaeridium parvum
|
Ohio |
Late Llandoverian |
|