Acanthodiacrodium |
Acanthodiacrodium simplex
|
France |
Tremadocian |
|
Acanthodiacrodium |
Acanthodiacrodium simplex
|
France |
Acadian |
|
Acanthodiacrodium |
Acanthodiacrodium simplex
|
Algeria |
Early Tremadocian |
|
Acanthodiacrodium |
Acanthodiacrodium simpliciusculum
|
E.Germany |
Late Llanvirnian |
|
Acanthodiacrodium |
Acanthodiacrodium tasselii
|
Belgium |
Wenlockian |
Ludlovian |
Acanthodiacrodium |
Acanthodiacrodium tasselii
|
Czechoslovakia |
Ordovician |
Arenigian |
Acanthodiacrodium |
Acanthodiacrodium tremadocum
|
Poland |
Late Tremadocian |
|
Acanthodiacrodium |
Acanthodiacrodium tremadocum
|
Africa(Sahara) |
Tremadocian |
|
Acanthodiacrodium |
Acanthodiacrodium uniforme
|
E.Germany |
Late Arenigian |
|
Acanthodiacrodium |
Acanthodiacrodium uniforme
|
E.Germany |
Early Llanvirnian |
|
Acritarch |
Acritarch sp.X Heme.,1968
sp. nov. |
E.Germany |
Late Llanvirnian |
|
Acritarch |
Acritarch sp.X Heme.,1968
sp. nov. |
Saudi Arabia |
Ordovician |
|
Adorfia |
Adorfia firma
|
E.Germany |
Late Arenigian |
|
Adorfia |
Adorfia firma
|
E.Germany |
Early Llanvirnian |
|
Adorfia |
Adorfia prolongata
|
E.Germany |
Late Arenigian |
|
Adorfia |
Adorfia prolongata
|
E.Germany |
Early Llanvirnian |
|
Anomaloplaisium |
Anomaloplaisium lumariacuspis
|
Indiana |
Late Ordovician |
|