Leiotriletes |
Leiotriletes microrugosus
|
USSR(Yakut ASSR) |
Kungurian |
|
Leiotriletes |
Leiotriletes microrugosus
|
USSR(Yakut ASSR) |
Kungurian |
Kazanian |
Leiotriletes |
Leiotriletes microrugosus
|
USSR(Far East) |
Middle Kazanian |
Late Kazanian |
Leiotriletes |
Leiotriletes microrugosus
|
USSR(Far East) |
Early Kazanian |
Middle Kazanian |
Leiotriletes |
Leiotriletes microrugosus
|
USSR(Far East) |
Orenburgian |
Kungurian |
Leiotriletes |
Leiotriletes nigrans
|
USSR(Urals) |
Kazanian |
|
Leiotriletes |
Leiotriletes nigritellus
|
USSR(Urals) |
Artinskian |
|
Leiotriletes |
Leiotriletes nigritellus
|
USSR(Yakut ASSR) |
Kungurian |
|
Leiotriletes |
Leiotriletes nigritellus
|
USSR(Yakut ASSR) |
Kungurian |
Kazanian |
Leiotriletes |
Leiotriletes nigritellus
|
USSR(Komi ASSR) |
Kungurian |
|
Leiotriletes |
Leiotriletes perpusillus
|
USSR(Komi ASSR) |
Tatarian |
|
Leiotriletes |
Leiotriletes pyramidalis
|
USSR(Urals) |
Kungurian |
|
Leiotriletes |
Leiotriletes pyramidalis
|
USSR(Yakut ASSR) |
Kungurian |
|
Leiotriletes |
Leiotriletes pyramidalis
|
USSR(Komi ASSR) |
Kungurian |
|
Leiotriletes |
Leiotriletes radiatus
|
USSR(Urals) |
Kazanian |
|
Leiotriletes |
Leiotriletes radiatus
|
USSR(Yakut ASSR) |
Kazanian |
|
Leiotriletes |
Leiotriletes rotundatus
|
USSR(Urals) |
Kazanian |
|