Micrhystridium |
Micrhystridium stellatum
|
Belgium |
Ordovician |
Tarannon |
Micrhystridium |
Micrhystridium sydus
|
Belgium |
Middle Wenlockian |
Early Ludlovian |
Micrhystridium |
Micrhystridium varians
|
Belgium |
Early Gothlandian |
Middle Gothlandian |
Micrhystridium |
Micrhystridium williereae
|
Belgium |
Late Llandoverian |
Early Wenlockian |
Multiplicisphaeridium |
Multiplicisphaeridium ramispinosum
|
Belgium |
Middle Wenlockian |
Early Ludlovian |
Peteinosphaeridium |
Peteinosphaeridium bergstroemii
|
Belgium |
Llandoverian |
Early Ludlovian |
Poikilofusa |
Poikilofusa spinata
|
Belgium |
Early Gothlandian |
|
Poikilofusa |
Poikilofusa striatifera
|
Belgium |
Early Gothlandian |
|
Priscogalea |
Priscogalea cristata
|
Belgium |
Early Tremadocian |
|
Priscogalea |
Priscogalea cristata
|
USSR(Kazakh SSR) |
Late Wenlockian |
|
Priscotheca |
Priscotheca prismatica
|
Algeria |
Tremadocian |
|
Priscotheca |
Priscotheca prismatica
|
Belgium |
Tremadocian |
Early Arenigian |
Protoleiosphaeridium |
Protoleiosphaeridium papillatum
|
Belgium |
Early Gothlandian |
|
Pterospermopsis |
Pterospermopsis onondagaensis
|
Belgium |
Tarannon |
Wenlockian |
Pulvinosphaeridium |
Pulvinosphaeridium cochinum
|
Belgium |
Tarannon |
Wenlockian |
Pulvinosphaeridium |
Pulvinosphaeridium pulvinellum
|
Belgium |
Late Tarannon |
|
Sol |
Sol planus
sp. nov. |
Belgium |
Tarannon |
|