Stictosphaeridium |
Stictosphaeridium brayense
|
Czechoslovakia |
Acadian |
|
Striatotheca |
Striatotheca microrugulata
|
Czechoslovakia |
Early Arenigian |
|
Striatotheca |
Striatotheca mutua
|
Czechoslovakia |
Late Arenigian |
|
Striatotheca |
Striatotheca principalis
|
Czechoslovakia |
Late Arenigian |
Early Llanvirnian |
Striatotheca |
Striatotheca principalis
|
Czechoslovakia |
Late Arenigian |
|
Sylvanidium |
Sylvanidium
|
Czechoslovakia |
Early Llanvirnian |
|
Sylvanidium |
Sylvanidium operculatum
|
Czechoslovakia |
Early Llanvirnian |
Late Ordovician |
Symplassosphaeridium |
Symplassosphaeridium sp
|
Czechoslovakia |
Acadian |
|
Tetraniveum |
Tetraniveum arenigum
|
Czechoslovakia |
Late Arenigian |
|
Timofeevia |
Timofeevia lancariae
|
Czechoslovakia |
Acadian |
|
Timofeevia |
Timofeevia martae
|
Czechoslovakia |
Acadian |
|
Timofeevia |
Timofeevia raquelinae
|
Czechoslovakia |
Acadian |
|
Tunisphaeridium |
Tunisphaeridium eligmosum
|
Czechoslovakia |
Late Arenigian |
|
Veryhachium |
Veryhachium horridum
|
Czechoslovakia |
Early Llanvirnian |
|
Veryhachium |
Veryhachium lairdii
|
Czechoslovakia |
Late Arenigian |
Early Llanvirnian |
Veryhachium |
Veryhachium reductum
|
Czechoslovakia |
Late Ordovician |
|
Veryhachium |
Veryhachium trispinosum
|
Czechoslovakia |
Late Arenigian |
Late Ordovician |