Leiotriletes |
Leiotriletes rotundus
|
USSR(Komi ASSR) |
Tatarian |
|
Leiotriletes |
Leiotriletes rotundus
|
USSR(Komi ASSR) |
Late Kazanian |
Early Tatarian |
Leiotriletes |
Leiotriletes sagitelliformis
|
USSR(Yakut ASSR) |
Kazanian |
|
Leiotriletes |
Leiotriletes subintortus
|
USSR(Yakut ASSR) |
Kungurian |
Kazanian |
Leiotriletes |
Leiotriletes subintortus
|
USSR(Yakut ASSR) |
Kungurian |
Kazanian |
Leiotriletes |
Leiotriletes subtriangulatus
|
USSR(Urals) |
Kazanian |
|
Leiotriletes |
Leiotriletes subtriangulatus
|
USSR(Yakut ASSR) |
Kungurian |
Kazanian |
Leiotriletes |
Leiotriletes turgidus
|
USSR(Yakut ASSR) |
Kazanian |
|
Limitisporites |
Limitisporites sp
|
China |
Kazanian |
|
Limitisporites |
Limitisporites sp
|
USSR(Urals) |
Asselian |
|
Lophotriletes |
Lophotriletes cystostegius
|
USSR(Far East) |
Orenburgian |
Kungurian |
Lophotriletes |
Lophotriletes gibberosus
|
USSR(Far East) |
Early Kazanian |
Middle Kazanian |
Lophotriletes |
Lophotriletes gibberuliformis
|
USSR(Urals) |
Kazanian |
|
Lophotriletes |
Lophotriletes gibberuliformis
|
USSR(Yakut ASSR) |
Kazanian |
|
Lophotriletes |
Lophotriletes gibberulus
|
USSR(Urals) |
Artinskian |
|
Lophotriletes |
Lophotriletes gibbosus
|
USSR(Yakut ASSR) |
Kungurian |
|
Lophotriletes |
Lophotriletes gibbosus
|
USSR(Komi ASSR) |
Kungurian |
|