Tunisphaeridium |
Tunisphaeridium concentricum
|
New York |
Nd |
|
Tunisphaeridium |
Tunisphaeridium concentricum
|
Spain |
Late Llandoverian |
|
Tunisphaeridium |
Tunisphaeridium concentricum
|
Belgium |
Late Llandoverian |
|
Tunisphaeridium |
Tunisphaeridium concentricum
|
Libya |
Late Gothlandian |
|
Tunisphaeridium |
Tunisphaeridium evittii
|
Ohio |
Nd |
|
Tunisphaeridium |
Tunisphaeridium evittii
|
Indiana |
Nd |
|
Tunisphaeridium |
Tunisphaeridium evittii
|
Kentucky |
Nd |
|
Tunisphaeridium |
Tunisphaeridium evittii
|
New York |
Late Llandoverian |
|
Tunisphaeridium |
Tunisphaeridium evittii
|
Canada(Ontario) |
Late Llandoverian |
|
Tunisphaeridium |
Tunisphaeridium evittii
|
New York |
Nd |
|
Tunisphaeridium |
Tunisphaeridium evittii
|
Florida |
Late Gothlandian |
|
Tunisphaeridium |
Tunisphaeridium evittii
|
Alabama |
Tarannon |
|
Tunisphaeridium |
Tunisphaeridium evittii
|
Georgia |
Tarannon |
|
Tunisphaeridium |
Tunisphaeridium parvum
|
Ohio |
Nd |
|
Tunisphaeridium |
Tunisphaeridium parvum
|
Indiana |
Nd |
|
Tunisphaeridium |
Tunisphaeridium parvum
|
Kentucky |
Tarannon |
|
Tunisphaeridium |
Tunisphaeridium parvum
|
Spain |
Ludlovian |
Early Gedinnian |