Micrhystridium |
Micrhystridium
|
Canada(Newfoundland) |
Early Tremadocian |
|
Micrhystridium |
Micrhystridium
|
Iran |
Early Tremadocian |
|
Micrhystridium |
Micrhystridium
|
Africa(N.Africa) |
Early Tremadocian |
|
Micrhystridium |
Micrhystridium
|
Argentina |
Early Tremadocian |
|
Multiplicisphaeridium |
Multiplicisphaeridium
|
Poland |
Early Tremadocian |
|
Multiplicisphaeridium |
Multiplicisphaeridium
|
England |
Early Tremadocian |
|
Multiplicisphaeridium |
Multiplicisphaeridium
|
France |
Early Tremadocian |
|
Multiplicisphaeridium |
Multiplicisphaeridium
|
Belgium |
Early Tremadocian |
|
Multiplicisphaeridium |
Multiplicisphaeridium
|
Spain |
Early Tremadocian |
|
Multiplicisphaeridium |
Multiplicisphaeridium
|
Italy |
Early Tremadocian |
|
Multiplicisphaeridium |
Multiplicisphaeridium
|
Canada(Newfoundland) |
Early Tremadocian |
|
Multiplicisphaeridium |
Multiplicisphaeridium
|
Iran |
Early Tremadocian |
|
Multiplicisphaeridium |
Multiplicisphaeridium
|
Africa(N.Africa) |
Early Tremadocian |
|
Multiplicisphaeridium |
Multiplicisphaeridium
|
Argentina |
Early Tremadocian |
|
Multiplicisphaeridium |
Multiplicisphaeridium cervinacornuum
|
USSR(Arkhangelsk Oblast) |
Late Cambrian |
|
Multiplicisphaeridium |
Multiplicisphaeridium cervinacornuum
|
USSR(Leningrad) |
Late Cambrian |
|
Multiplicisphaeridium |
Multiplicisphaeridium cervinacornuum
|
Estonia |
Late Cambrian |
|