Leiomarginata |
Leiomarginata simplex
|
USSR(Kalinin) |
Ordovician |
|
Leiomarginata |
Leiomarginata simplex
sp. nov. |
USSR(Yaroslav) |
Ordovician |
|
Leiopsophosphaera |
Leiopsophosphaera aperta
|
USSR(Yaroslav) |
Ordovician |
|
Leiopsophosphaera |
Leiopsophosphaera minutissima
|
USSR(Yaroslav) |
Ordovician |
|
Leiopsophosphaera |
Leiopsophosphaera plicata
|
USSR(Yaroslav) |
Ordovician |
|
Leiopsophosphaera |
Leiopsophosphaera simplicissima
|
USSR(Yaroslav) |
Ordovician |
|
Lophomarginata |
Lophomarginata ampla
|
USSR(Russian Platform) |
Ordovician |
|
Lophomarginata |
Lophomarginata ampla
sp. nov. |
USSR(Yaroslav) |
Middle Ordovician |
|
Lophomarginata |
Lophomarginata assueta
|
USSR(Russian Platform) |
Ordovician |
|
Lophomarginata |
Lophomarginata assueta
sp. nov. |
USSR(Yaroslav) |
Middle Ordovician |
|
Lophopsophosphaera |
Lophopsophosphaera millegrana
|
USSR(Yaroslav) |
Ordovician |
|
Lophopsophosphaera |
Lophopsophosphaera parvula
|
USSR(Russian Platform) |
Ordovician |
|
Lophopsophosphaera |
Lophopsophosphaera parvula
sp. nov. |
USSR(Yaroslav) |
Middle Ordovician |
|
Micrhystridium |
Micrhystridium eatonense
|
USSR(Yaroslav) |
Ordovician |
|
Micrhystridium |
Micrhystridium stellatum
|
USSR(Yaroslav) |
Ordovician |
|
Micrhystridium |
Micrhystridium stellatum
|
USSR(Yaroslav) |
Ordovician |
|
Micrhystridium |
Micrhystridium tornatum
|
USSR(Yaroslav) |
Ordovician |
|