Stenozonotriletes |
Stenozonotriletes conformis
|
USSR(Latvian SSR) |
Middle Frasnian |
|
Archaeozonotriletes |
Archaeozonotriletes nalivkinii
|
USSR(Latvian SSR) |
Middle Frasnian |
|
Hymenozonotriletes |
Hymenozonotriletes incisus
|
USSR(Latvian SSR) |
Middle Frasnian |
|
Retusotriletes |
Retusotriletes verruculatus
|
USSR(Latvian SSR) |
Middle Frasnian |
|
Trachytriletes |
Trachytriletes solidus
|
USSR(Latvian SSR) |
Middle Frasnian |
|
Trachytriletes |
Trachytriletes minor
|
USSR(Latvian SSR) |
Middle Frasnian |
|
Leiotriletes |
Leiotriletes minutissimus
|
USSR(Latvian SSR) |
Middle Frasnian |
|
Acanthotriletes |
Acanthotriletes dentatus
|
USSR(Latvian SSR) |
Middle Frasnian |
|
Lophozonotriletes |
Lophozonotriletes scurrus
|
USSR(Latvian SSR) |
Middle Frasnian |
|
Stenozonotriletes |
Stenozonotriletes extensus
|
USSR(Latvian SSR) |
Middle Frasnian |
|
Lophozonotriletes |
Lophozonotriletes grumosus
|
USSR(Latvian SSR) |
Middle Frasnian |
|
Lophozonotriletes |
Lophozonotriletes torosus
|
USSR(Latvian SSR) |
Middle Frasnian |
|
Stenozonotriletes |
Stenozonotriletes simplex
|
USSR(Latvian SSR) |
Middle Frasnian |
|
Stenozonotriletes |
Stenozonotriletes definitus
|
USSR(Latvian SSR) |
Middle Frasnian |
|
Archaeoperisaccus |
Archaeoperisaccus concinnus
|
USSR(Latvian SSR) |
Middle Frasnian |
|
Archaeoperisaccus |
Archaeoperisaccus mirandus
|
USSR(Latvian SSR) |
Middle Frasnian |
|
Archaeoperisaccus |
Archaeoperisaccus mirus
|
USSR(Latvian SSR) |
Middle Frasnian |
|