Acanthotriletes |
Acanthotriletes rugosus
|
USSR(Estonian SSR) |
Early Gothlandian |
|
Archaealetes |
Archaealetes mutabilis
|
USSR(Russian Platform) |
Tremadocian |
Early Gothlandian |
Archaealetes |
Archaealetes mutabilis
|
USSR(Estonian SSR) |
Early Gothlandian |
|
Archaealetes |
Archaealetes serratus
|
USSR(Russian Platform) |
Tremadocian |
|
Archaealetes |
Archaealetes serratus
|
USSR(Estonian SSR) |
Early Gothlandian |
|
Archaealetes |
Archaealetes spectatissimus
|
USSR(Russian Platform) |
Tremadocian |
|
Archaealetes |
Archaealetes spectatissimus
|
USSR(Estonian SSR) |
Early Gothlandian |
|
Archaeodiscina |
Archaeodiscina microporifera
sp. nov. |
USSR(Yaroslav) |
Middle Ordovician |
|
Archaeodiscina |
Archaeodiscina parvibody
|
USSR(Yaroslav) |
Middle Ordovician |
|
Archaeodiscina |
Archaeodiscina parvibody
|
USSR(Yaroslav) |
Middle Ordovician |
|
Archaeodiscina |
Archaeodiscina retiformie
sp. nov. |
USSR(Yaroslav) |
Middle Ordovician |
|
Archaeodiscina |
Archaeodiscina vermiformis
sp. nov. |
USSR(Yaroslav) |
Middle Ordovician |
|
Archaeofavosina |
Archaeofavosina bipartita
sp. nov. |
USSR(Yaroslav) |
Tremadocian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium bifurcatum
|
USSR(Russian Platform) |
Tremadocian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium crispatum
|
USSR(Russian Platform) |
Early Gothlandian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium crispatum
|
USSR(Pre-Baltic) |
Middle Cambrian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium cuneidentatum
|
USSR(Russian Platform) |
Early Ordovician |
Middle Ordovician |