Synsphaeridium |
Synsphaeridium sp
|
USSR(Baltic) |
Cambrian |
Ordovician |
Synsphaeridium |
Synsphaeridium varium
|
USSR(Baltic) |
Ordovician |
|
Tasmanites |
Tasmanites kaljoi
|
USSR(Baltic) |
Silurian |
|
Tasmanites |
Tasmanites kaljoi
|
USSR(Yaroslav) |
Early Carboniferous |
|
Tasmanites |
Tasmanites mangaseus
|
USSR(Baltic) |
Ordovician |
|
Tasmanites |
Tasmanites sp
|
USSR(Yaroslav) |
Early Carboniferous |
|
Tasmanites |
Tasmanites variabilis
|
USSR(Baltic) |
Silurian |
|
Trachysphaeridium |
Trachysphaeridium attenuatum
|
USSR(Baltic) |
Cambrian |
|
Trachytriletes |
Trachytriletes
|
USSR(Yaroslav) |
Early Frasnian |
|
Trachytriletes |
Trachytriletes minor
|
USSR(Yaroslav) |
Devonian |
Early Carboniferous |
Trematosphaeridium |
Trematosphaeridium holtedahlii
|
USSR(Baltic) |
Middle Cambrian |
|
Trematozonotriletes |
Trematozonotriletes bialatus
|
USSR(Yaroslav) |
Carboniferous |
|
Trematozonotriletes |
Trematozonotriletes gibberosus
|
USSR(Yaroslav) |
Carboniferous |
|
Trichosphaeridium |
Trichosphaeridium annolovaense
|
USSR(Baltic) |
Cambrian |
|
Trichosphaeridium |
Trichosphaeridium hispidum
|
USSR(Baltic) |
Cambrian |
|
Trilobozonotriletes |
Trilobozonotriletes concavus
|
USSR(Ukrainian SSR) |
Triassic |
|
Trilobozonotriletes |
Trilobozonotriletes concavus
|
USSR(Yaroslav) |
Early Carboniferous |
|