Micrhystridium |
Micrhystridium lubomlense
|
USSR(Ukrainian SSR) |
Early Cambrian |
|
Micrhystridium |
Micrhystridium rarifurcatum
|
USSR(Ukrainian SSR) |
Late Gothlandian |
|
Micrhystridium |
Micrhystridium staplini
|
USSR(Ukrainian SSR) |
Late Gothlandian |
|
Micrhystridium |
Micrhystridium stylosum
|
USSR(Ukrainian SSR) |
Late Gothlandian |
|
Micrhystridium |
Micrhystridium villosum
|
USSR(Ukrainian SSR) |
Early Cambrian |
|
Pulvinosphaeridium |
Pulvinosphaeridium striatulum
|
USSR(Ukrainian SSR) |
Late Gothlandian |
|
Pulvinosphaeridium |
Pulvinosphaeridium trifidum
|
USSR(Ukrainian SSR) |
Late Gothlandian |
Early Devonian |
Veryhachium |
Veryhachium asfalum
|
USSR(Urals) |
Silurian |
|
Triangulina |
Triangulina arcessita
|
USSR(Yaroslav) |
Ordovician |
|
Veryhachium |
Veryhachium arcessitum
|
USSR(Yaroslav) |
Ordovician |
|
Buedingiisphaeridium |
Buedingiisphaeridium
|
W.Germany(Hesse) |
Zechstein |
|
Dorsennidium |
Dorsennidium conispinosum
|
W.Germany(Hesse) |
Permian |
|
Veryhachium |
Veryhachium conispinosum
|
W.Germany(Hesse) |
Permian |
|
Dorsennidium |
Dorsennidium irregulare
|
Yugoslavia |
Permian |
Triassic |
Dorsennidium |
Dorsennidium irregulare
|
Yugoslavia |
Permian |
Triassic |
Veryhachium |
Veryhachium irregulare
|
Yugoslavia |
Permian |
Triassic |
Veryhachium |
Veryhachium irregulare
|
Yugoslavia |
Permian |
Triassic |