Tasmanites |
Tasmanites sommeri
|
Ohio |
Eifelian |
Famennian |
Tasmanites |
Tasmanites winslowiae
|
Canada(Ontario) |
Eifelian |
Famennian |
Tasmanites |
Tasmanites winslowiae
|
Michigan |
Frasnian |
Famennian |
Tasmanites |
Tasmanites winslowiae
|
Ohio |
Frasnian |
Famennian |
Thysanoprobolus |
Thysanoprobolus polykion
|
Oklahoma |
Late Gedinnian |
|
Tornacia |
Tornacia stela
|
Ohio |
Middle Famennian |
Late Famennian |
Tunisphaeridium |
Tunisphaeridium concentricum
|
New York |
Middle Gothlandian |
|
Tunisphaeridium |
Tunisphaeridium concentricum
|
Canada(Ontario) |
Late Siegenian |
Givetian |
Tunisphaeridium |
Tunisphaeridium concentricum
|
Ohio |
Givetian |
|
Tunisphaeridium |
Tunisphaeridium tentaculaferum
|
New York |
Silurian |
|
Tunisphaeridium |
Tunisphaeridium tentaculaferum
|
Canada(Ontario) |
Late Siegenian |
Early Eifelian |
Tunisphaeridium |
Tunisphaeridium tentaculaferum
|
Ohio |
Givetian |
|
Tunisphaeridium |
Tunisphaeridium tentaculaferum
|
Canada(Ontario) |
Givetian |
|
Tyligmasoma |
Tyligmasoma alargada
|
Canada(Ontario) |
Emsian |
Givetian |
Tyligmasoma |
Tyligmasoma alargada
|
Ohio |
Givetian |
|
Uncinisphaera |
Uncinisphaera acantha
|
Ohio |
Givetian |
|
Uncinisphaera |
Uncinisphaera lappa
|
Ohio |
Middle Famennian |
Late Famennian |