Rhabdosporites |
Rhabdosporites langii
|
Canada(Arctic) |
Givetian |
|
Rhabdosporites |
Rhabdosporites parvulus
|
Scotland |
Givetian |
|
Rhabdosporites |
Rhabdosporites parvulus
|
Iowa |
Givetian |
|
Rhabdosporites |
Rhabdosporites scamnus
|
|
Frasnian |
|
Samarisporites |
Samarisporites biornatus
|
Scotland |
Late Gedinnian |
|
Samarisporites |
Samarisporites conoannulatus
|
France(Maine-et-Loire) |
Middle Siegenian |
Late Siegenian |
Samarisporites |
Samarisporites inaequus
|
Canada(Arctic) |
Frasnian |
|
Samarisporites |
Samarisporites inusitatus
|
France(Maine-et-Loire) |
Middle Siegenian |
Late Siegenian |
Samarisporites |
Samarisporites megaformis
|
Scotland |
Late Eifelian |
|
Samarisporites |
Samarisporites megaformis
|
Canada |
Late Emsian |
|
Samarisporites |
Samarisporites megaformis
|
Canada(Ontario) |
Givetian |
|
Samarisporites |
Samarisporites sp
|
Canada(Arctic) |
Givetian |
|
Schopfites |
Schopfites minor
|
Germany |
Early Emsian |
|
Spinozonotriletes |
Spinozonotriletes
|
Germany |
Late Emsian |
|
Spinozonotriletes |
Spinozonotriletes
|
Illinois |
Givetian |
|
Spinozonotriletes |
Spinozonotriletes echinatus
|
France(Maine-et-Loire) |
Middle Siegenian |
Late Siegenian |
Spinozonotriletes |
Spinozonotriletes mammillatus
|
France(Maine-et-Loire) |
Middle Siegenian |
Late Siegenian |