Micrhystridium |
Micrhystridium varians
|
Nd |
Nd |
|
Multiplicisphaeridium |
Multiplicisphaeridium alloiteauii
|
Belgium |
Ordovician |
|
Multiplicisphaeridium |
Multiplicisphaeridium alloiteauii
|
England |
Caradocian |
|
Multiplicisphaeridium |
Multiplicisphaeridium alloiteauii
|
Canada |
Middle Devonian |
|
Multiplicisphaeridium |
Multiplicisphaeridium andrewsii
|
Belgium |
Frasnian |
|
Multiplicisphaeridium |
Multiplicisphaeridium arbusculiferum
|
Indiana |
Late Llandoverian |
|
Multiplicisphaeridium |
Multiplicisphaeridium arbusculiferum
|
Ohio |
Late Llandoverian |
|
Multiplicisphaeridium |
Multiplicisphaeridium arbusculiferum
|
Ohio |
Wenlockian |
|
Multiplicisphaeridium |
Multiplicisphaeridium arbusculiferum
|
Alabama |
Llandoverian |
Early Wenlockian |
Multiplicisphaeridium |
Multiplicisphaeridium arbusculiferum
|
England |
Wenlockian |
Ludlovian |
Multiplicisphaeridium |
Multiplicisphaeridium arbusculiferum
|
Canada(Ontario) |
Wenlockian |
|
Multiplicisphaeridium |
Multiplicisphaeridium arbusculiferum
|
New York |
Wenlockian |
|
Multiplicisphaeridium |
Multiplicisphaeridium arbusculiferum
|
Pennsylvania |
Wenlockian |
|
Multiplicisphaeridium |
Multiplicisphaeridium arbusculiferum
|
Georgia |
Llandoverian |
Early Wenlockian |
Multiplicisphaeridium |
Multiplicisphaeridium asturiae
|
Spain |
Late Wenlockian |
Early Gedinnian |
Multiplicisphaeridium |
Multiplicisphaeridium asturiae
|
Florida |
Late Ludlovian |
|
Multiplicisphaeridium |
Multiplicisphaeridium barbarum
|
Africa(Sahara) |
Tremadocian |
Arenigian |