Conochitina |
Conochitina sp
|
USSR(Vologda) |
Middle Ordovician |
|
Lagenochitina |
Lagenochitina sp
|
USSR(Vologda) |
Middle Ordovician |
|
Rhabdochitina |
Rhabdochitina sp
|
USSR(Vologda) |
Middle Ordovician |
|
Orygmatosphaeridium |
Orygmatosphaeridium ruminatum
|
USSR(Vologda) |
Middle Ordovician |
|
Baltisphaeridium |
Baltisphaeridium stellaeforme
|
USSR(Vologda) |
Middle Ordovician |
|
Veryhachium |
Veryhachium nasicum
|
USSR(Vologda) |
Middle Ordovician |
|
Veryhachium |
Veryhachium reductum
|
USSR(Vologda) |
Middle Ordovician |
|
Veryhachium |
Veryhachium trisphaeridium
|
USSR(Vologda) |
Middle Ordovician |
|
Baltisphaeridium |
Baltisphaeridium annulatum
|
USSR(Vologda) |
Middle Ordovician |
|
Sphaerochitina |
Sphaerochitina llorona
|
USSR(Vologda) |
Middle Ordovician |
|
Cyathochitina |
Cyathochitina sp
|
USSR(Vologda) |
Middle Ordovician |
|
Polyforama |
Polyforama biloculasis
|
USSR(Vologda) |
Middle Ordovician |
|
Polyforama |
Polyforama inaequalis
|
USSR(Vologda) |
Middle Ordovician |
|
Polyforama |
Polyforama medialis
|
USSR(Vologda) |
Middle Ordovician |
|
Polyforama |
Polyforama minor
|
USSR(Vologda) |
Middle Ordovician |
|
Polyforama |
Polyforama simplex
|
USSR(Vologda) |
Middle Ordovician |
|
Polyforama |
Polyforama trivialis
|
USSR(Vologda) |
Middle Ordovician |
|