Fimbriaglomerella |
Fimbriaglomerella minuta
|
USSR(Russian Platform) |
Early Cambrian |
|
Florisphaeridium |
Florisphaeridium castellum
|
Worldwide |
Gorstian |
Early Ludfordian |
Florisphaeridium |
Florisphaeridium wenlockense
|
Worldwide |
Sheinwoodian |
|
Fractoricoronula |
Fractoricoronula trirhetica
|
England |
Caradocian |
|
Frankea |
Frankea
|
Gondwanaland |
Caradocian |
Ashgillian |
Frankea |
Frankea hamata
|
Nd |
Nd |
|
Frankea |
Frankea hamulata
|
Nd |
Late Llanvirnian |
Llandeilian |
Frankea |
Frankea sartbernardensis
|
Nd |
Late Arenigian |
Llandeilian |
Geron |
Geron gracilis
|
Worldwide |
Sheinwoodian |
Pridolian |
Geron |
Geron guerillerus
|
Worldwide |
Late Telychian |
Pridolian |
Globosphaeridium |
Globosphaeridium cerinum
|
USSR(Russian Platform) |
Early Cambrian |
|
Goniosphaeridium |
Goniosphaeridium
|
Nd |
Nd |
|
Goniosphaeridium |
Goniosphaeridium akrochordum
|
Nd |
Tremadocian |
|
Goniosphaeridium |
Goniosphaeridium akrochordum
|
Canada(Alberta) |
Late Cambrian |
Tremadocian |
Goniosphaeridium |
Goniosphaeridium implicatum
|
Poland |
Early Cambrian |
|
Goniosphaeridium |
Goniosphaeridium implicatum
|
USSR(Russian Platform) |
Early Cambrian |
Middle Cambrian |
Goniosphaeridium |
Goniosphaeridium pungens
|
Nd |
Nd |
|