Lophosphaeridium |
Lophosphaeridium parverarum
|
USSR(Siberia) |
Middle Llandoverian |
Late Llandoverian |
Lophosphaeridium |
Lophosphaeridium plicatulum
|
USSR(Siberia) |
Late Llandoverian |
|
Lophosphaeridium |
Lophosphaeridium turulosum
|
USSR(Siberia) |
Middle Llandoverian |
Late Llandoverian |
Micrhystridium |
Micrhystridium
|
USSR(Siberia) |
Ludlovian |
|
Micrhystridium |
Micrhystridium campoae
|
USSR(Siberia) |
Middle Llandoverian |
|
Micrhystridium |
Micrhystridium certum
|
USSR(Siberia) |
Middle Llandoverian |
|
Micrhystridium |
Micrhystridium flandrianum
|
USSR(Siberia) |
Middle Llandoverian |
Late Llandoverian |
Nucellosphaeridium |
Nucellosphaeridium deunffii
|
USSR(Siberia) |
Ludlovian |
|
Polyedryxium |
Polyedryxium lagoviense
|
USSR(Siberia) |
Middle Llandoverian |
Late Llandoverian |
Pterospermella |
Pterospermella
|
USSR(Siberia) |
Middle Llandoverian |
|
Pulvinosphaeridium |
Pulvinosphaeridium pulvinellum
|
USSR(Siberia) |
Middle Llandoverian |
Late Llandoverian |
Rhabdochitina |
Rhabdochitina communis
|
USSR(Siberia) |
Middle Llandoverian |
|
Rhabdochitina |
Rhabdochitina regularis
|
USSR(Siberia) |
Middle Llandoverian |
|
Rhabdochitina |
Rhabdochitina regularis
|
USSR(Siberia) |
Late Llandoverian |
|
Sphaerochitina |
Sphaerochitina sphaerocephala
|
USSR(Siberia) |
Ludlovian |
|
Steneyochitina |
Steneyochitina ovatoelongata
|
USSR(Siberia) |
Late Llandoverian |
|
Tasmanites |
Tasmanites kaljoi
|
USSR(Siberia) |
Ludlovian |
|