Archaeotriletes |
Archaeotriletes novus
sp. nov. |
USSR(Latvian SSR) |
Early Frasnian |
|
Archaeotriletes |
Archaeotriletes stictus
sp. nov. |
USSR(Latvian SSR) |
Early Frasnian |
|
Archaeozonotriletes |
Archaeozonotriletes basilaris
|
USSR(Latvian SSR) |
Early Frasnian |
|
Archaeozonotriletes |
Archaeozonotriletes compactus
|
USSR(Latvian SSR) |
Givetian |
|
Archaeozonotriletes |
Archaeozonotriletes devonicus
|
USSR(Latvian SSR) |
Early Frasnian |
|
Archaeozonotriletes |
Archaeozonotriletes echinatus
|
USSR(Latvian SSR) |
Late Frasnian |
|
Archaeozonotriletes |
Archaeozonotriletes macromanifestus
|
USSR(Latvian SSR) |
Early Frasnian |
|
Archaeozonotriletes |
Archaeozonotriletes micromanifestus
|
USSR(Latvian SSR) |
Early Frasnian |
|
Archaeozonotriletes |
Archaeozonotriletes nalivkinii
|
USSR(Latvian SSR) |
Middle Frasnian |
|
Archaeozonotriletes |
Archaeozonotriletes polymorphus
|
USSR(Latvian SSR) |
Early Frasnian |
Middle Frasnian |
Archaeozonotriletes |
Archaeozonotriletes regularis
|
USSR(Latvian SSR) |
Frasnian |
|
Archaeozonotriletes |
Archaeozonotriletes rugosus
|
USSR(Latvian SSR) |
Early Frasnian |
|
Archaeozonotriletes |
Archaeozonotriletes variabilis
|
USSR(Latvian SSR) |
Givetian |
|
Brochotriletes |
Brochotriletes foveolatus
|
USSR(Latvian SSR) |
Early Frasnian |
|
Brochotriletes |
Brochotriletes foveolatus
|
USSR(Latvian SSR) |
Middle Frasnian |
|
Chomotriletes |
Chomotriletes vedugensis
|
USSR(Latvian SSR) |
Early Frasnian |
|
Dictyotriletes |
Dictyotriletes devonicus
|
USSR(Latvian SSR) |
Early Frasnian |
Middle Frasnian |