Cymatiosphaera |
Cymatiosphaera perimembrana
|
Worldwide |
Frasnian |
|
Daillydium |
Daillydium pentaster
|
Algeria |
Frasnian |
|
Frankea |
Frankea sp
|
Europe |
Arenigian |
Llanvirnian |
Frankea |
Frankea sp
|
Africa |
Caradocian |
|
Frankea |
Frankea sp
|
Florida |
Caradocian |
|
Hapsidopalla |
Hapsidopalla sp
|
Worldwide |
Frasnian |
|
Maranhites |
Maranhites brasiliensis
|
Brazil |
Frasnian |
|
Maranhites |
Maranhites brasiliensis
|
Ghana |
Frasnian |
|
Maranhites |
Maranhites brasiliensis
|
Algeria |
Frasnian |
|
Maranhites |
Maranhites brasiliensis
|
Australia(W.Australia) |
Frasnian |
|
Micrhystridium |
Micrhystridium sp
|
Germany |
Frasnian |
|
Neoveryhachium |
Neoveryhachium carminae
|
USA(Appalachian Bn.) |
Silurian |
|
Stellinium |
Stellinium micropolygonale
|
Algeria |
Frasnian |
|
Umbellasphaeridium |
Umbellasphaeridium sp
|
Ghana |
Frasnian |
|
Umbellasphaeridium |
Umbellasphaeridium sp
|
Brazil |
Frasnian |
|
Umbellasphaeridium |
Umbellasphaeridium sp
|
Algeria |
Frasnian |
|
Villosacapsula |
Villosacapsula ceratioides
|
Worldwide |
Frasnian |
|