Archaeofavosina |
Archaeofavosina bella
|
USSR(Yakut ASSR) |
Early Ordovician |
|
Archaeomassulina |
Archaeomassulina
|
USSR(Yakut ASSR) |
Middle Riphean |
Early Ordovician |
Archaeomassulina |
Archaeomassulina glabra
|
USSR(Yakut ASSR) |
Early Ordovician |
|
Archaeomassulina |
Archaeomassulina reticularis
|
USSR(Yakut ASSR) |
Early Ordovician |
|
Archaeopsophosphaera |
Archaeopsophosphaera
|
USSR(Yakut ASSR) |
Vendian |
Early Ordovician |
Archaeopsophosphaera |
Archaeopsophosphaera fragilis
|
USSR(Yakut ASSR) |
Early Ordovician |
|
Archaeopsophosphaera |
Archaeopsophosphaera kendictasica
|
USSR(Yakut ASSR) |
Early Ordovician |
|
Archaeopsophosphaera |
Archaeopsophosphaera rugosa
|
USSR(Yakut ASSR) |
Early Ordovician |
|
Costatosphaerina |
Costatosphaerina
|
USSR(Yakut ASSR) |
Vendian |
|
Costatosphaerina |
Costatosphaerina corrosiva
|
USSR(Yakut ASSR) |
Ordovician |
|
Costatosphaerina |
Costatosphaerina minima
|
USSR(Yakut ASSR) |
Ordovician |
|
Costatosphaerina |
Costatosphaerina psilata
|
USSR(Yakut ASSR) |
Ordovician |
|
Costatosphaerina |
Costatosphaerina tenuissima
|
USSR(Yakut ASSR) |
Ordovician |
|
Cymatiosphaera |
Cymatiosphaera
|
USSR(Yakut ASSR) |
Middle Riphean |
|
Dictyotidium |
Dictyotidium
|
USSR(Yakut ASSR) |
Middle Riphean |
Late Riphean |
Gyratosphaerina |
Gyratosphaerina
|
USSR(Yakut ASSR) |
Vendian |
|
Kildinella |
Kildinella
|
USSR(Yakut ASSR) |
Middle Riphean |
|