Baltisphaeridium |
Baltisphaeridium echinatum
sp. nov. |
USSR(Kalinin) |
Ordovician |
|
Baltisphaeridium |
Baltisphaeridium rugosum
|
USSR(Kalinin) |
Ordovician |
|
Veryhachium |
Veryhachium convexum
|
USSR(Kalinin) |
Ordovician |
|
Trachypsophosphaera |
Trachypsophosphaera asperata
|
USSR(Kalinin) |
Ordovician |
|
Trachypsophosphaera |
Trachypsophosphaera hyalina
|
USSR(Kalinin) |
Ordovician |
|
Trachypsophosphaera |
Trachypsophosphaera incrassata
|
USSR(Kalinin) |
Ordovician |
|
Leiomarginata |
Leiomarginata simplex
|
USSR(Kalinin) |
Ordovician |
|
Trachymarginata |
Trachymarginata sokolovi
|
USSR(Kalinin) |
Ordovician |
|
Trachymarginata |
Trachymarginata delicata
sp. nov. |
USSR(Kalinin) |
Middle Ordovician |
|
Veryhachium |
Veryhachium arcessitum
|
USSR(Russian Platform) |
Ordovician |
|
Veryhachium |
Veryhachium ordinarium
|
USSR(Russian Platform) |
Ordovician |
|
Trachypsophosphaera |
Trachypsophosphaera minutissima
|
USSR(Russian Platform) |
Cambrian |
Ordovician |
Trachypsophosphaera |
Trachypsophosphaera universala
|
USSR(Russian Platform) |
Cambrian |
Ordovician |
Lophopsophosphaera |
Lophopsophosphaera parvula
|
USSR(Russian Platform) |
Ordovician |
|
Leiomarginata |
Leiomarginata simplex
|
USSR(Russian Platform) |
Cambrian |
Ordovician |
Trachymarginata |
Trachymarginata delicata
|
USSR(Russian Platform) |
Cambrian |
Ordovician |
Lophomarginata |
Lophomarginata assueta
|
USSR(Russian Platform) |
Ordovician |
|