Conochitina |
Conochitina tomentosa
|
USSR(Russian Platform) |
Early Ordovician |
|
Cyathochitina |
Cyathochitina calix
|
USSR(Russian Platform) |
Early Ordovician |
|
Desmochitina |
Desmochitina minor
|
USSR(Russian Platform) |
Early Ordovician |
|
Desmochitina |
Desmochitina minor
|
USSR(Russian Platform) |
Early Ordovician |
|
Didymograptus |
Didymograptus sp
|
USSR(Russian Platform) |
Early Ordovician |
|
Hystrichosphaeridium |
Hystrichosphaeridium authoforum
|
USSR(Russian Platform) |
Early Ordovician |
|
Hystrichosphaeridium |
Hystrichosphaeridium bifurcatum
|
USSR(Russian Platform) |
Early Ordovician |
|
Hystrichosphaeridium |
Hystrichosphaeridium dictyophorum
|
USSR(Russian Platform) |
Early Ordovician |
|
Hystrichosphaeridium |
Hystrichosphaeridium ferox
|
USSR(Russian Platform) |
Early Ordovician |
|
Hystrichosphaeridium |
Hystrichosphaeridium gdovia
|
USSR(Russian Platform) |
Early Ordovician |
|
Hystrichosphaeridium |
Hystrichosphaeridium pateum
|
USSR(Russian Platform) |
Early Ordovician |
|
Hystrichosphaeridium |
Hystrichosphaeridium trifurcatum
|
USSR(Russian Platform) |
Early Ordovician |
|
Lagenochitina |
Lagenochitina sp
|
USSR(Russian Platform) |
Early Ordovician |
|
Leiosphaeridia |
Leiosphaeridia cerina
|
USSR(Russian Platform) |
Early Ordovician |
|
Leiosphaeridia |
Leiosphaeridia eisenackii
|
USSR(Russian Platform) |
Early Ordovician |
|
Lophosphaeridium |
Lophosphaeridium obtusatum
|
USSR(Russian Platform) |
Early Ordovician |
|
Lophosphaeridium |
Lophosphaeridium spandum
|
USSR(Russian Platform) |
Early Ordovician |
|