Arbusculidium |
Arbusculidium filamentosum
|
Belgium |
Llanvirnian |
|
Aureotesta |
Aureotesta clathrata
|
Belgium |
Arenigian |
|
Marrocanium |
Marrocanium simplex
|
Belgium |
Arenigian |
|
Dicrodiacrodium |
Dicrodiacrodium normale
|
Belgium |
Arenigian |
Llanvirnian |
Dicrodiacrodium |
Dicrodiacrodium ancoriforme
|
Belgium |
Arenigian |
Llanvirnian |
Arbusculidium |
Arbusculidium filamentosum
|
China |
Arenigian |
|
Marrocanium |
Marrocanium simplex
|
China |
Arenigian |
|
Aureotesta |
Aureotesta clathrata
|
China |
Arenigian |
|
Dicrodiacrodium |
Dicrodiacrodium normale
|
China |
Arenigian |
Llanvirnian |
Aureotesta |
Aureotesta
|
China |
Early Ordovician |
|
Dicrodiacrodium |
Dicrodiacrodium ancoriforme
|
China |
Arenigian |
Llanvirnian |
Arbusculidium |
Arbusculidium filamentosum
|
Czechoslovakia(Bohemia) |
Arenigian |
|
Marrocanium |
Marrocanium simplex
|
Czechoslovakia(Bohemia) |
Arenigian |
|
Aureotesta |
Aureotesta clathrata
|
Czechoslovakia(Bohemia) |
Arenigian |
|
Dicrodiacrodium |
Dicrodiacrodium normale
|
Czechoslovakia(Bohemia) |
Arenigian |
Llanvirnian |
Dicrodiacrodium |
Dicrodiacrodium ancoriforme
|
Czechoslovakia(Bohemia) |
Arenigian |
Llanvirnian |
Arkonia |
Arkonia
|
Czechoslovakia(Bohemia) |
Late Arenigian |
|