Archaeoperisaccus |
Archaeoperisaccus turgenevii
|
USSR(Russian Platform) |
Middle Frasnian |
|
Hymenozonotriletes |
Hymenozonotriletes domanicus
|
USSR(Russian Platform) |
Middle Frasnian |
|
Leiotriletes |
Leiotriletes microrugosus
|
USSR(Russian Platform) |
Middle Frasnian |
|
Leiotriletes |
Leiotriletes atavus
|
USSR(Russian Platform) |
Middle Frasnian |
|
Leiotriletes |
Leiotriletes minutissimus
|
USSR(Russian Platform) |
Middle Frasnian |
|
Leiotriletes |
Leiotriletes nigratus
|
USSR(Russian Platform) |
Middle Frasnian |
|
Trachytriletes |
Trachytriletes solidus
|
USSR(Russian Platform) |
Middle Frasnian |
|
Lophotriletes |
Lophotriletes rotundus
|
USSR(Russian Platform) |
Middle Frasnian |
|
Lophotriletes |
Lophotriletes rugosus
|
USSR(Russian Platform) |
Middle Frasnian |
|
Retusotriletes |
Retusotriletes communis
|
USSR(Russian Platform) |
Middle Frasnian |
|
Retusotriletes |
Retusotriletes pychovii
|
USSR(Russian Platform) |
Middle Frasnian |
|
Retusotriletes |
Retusotriletes semilucensis
|
USSR(Russian Platform) |
Middle Frasnian |
|
Archaeozonotriletes |
Archaeozonotriletes compactus
|
USSR(Russian Platform) |
Middle Frasnian |
|
Archaeozonotriletes |
Archaeozonotriletes nalivkinii
|
USSR(Russian Platform) |
Middle Frasnian |
|
Archaeozonotriletes |
Archaeozonotriletes basilaris
|
USSR(Russian Platform) |
Middle Frasnian |
|
Archaeozonotriletes |
Archaeozonotriletes rugosus
|
USSR(Russian Platform) |
Middle Frasnian |
|
Archaeozonotriletes |
Archaeozonotriletes variabilis
|
USSR(Russian Platform) |
Middle Frasnian |
|