Leiosphaeridia |
Leiosphaeridia bituminosa
|
USSR(Karelian ASSR) |
Middle Precambrian |
|
Leiosphaeridia |
Leiosphaeridia bituminosa
|
USSR(Siberia) |
Riphean |
|
Leiosphaeridia |
Leiosphaeridia cerina
|
USSR(Leningrad) |
Middle Cambrian |
|
Leiosphaeridia |
Leiosphaeridia eisenackii
|
USSR(Siberia) |
Riphean |
|
Leiosphaeridia |
Leiosphaeridia sp
|
USSR(Siberia) |
Riphean |
|
Leiosphaeridia |
Leiosphaeridia sp
|
USSR(Leningrad) |
Middle Cambrian |
|
Leiosphaeridia |
Leiosphaeridia uspenskyi
|
USSR(Leningrad) |
Middle Cambrian |
|
Leiothrichoides |
Leiothrichoides tipicus
|
USSR(Pre-Baltic) |
Late Riphean |
|
Lophodiacrodium |
Lophodiacrodium ordinarium
|
USSR(Leningrad) |
Middle Cambrian |
|
Lophorytidodiacrodium |
Lophorytidodiacrodium sp
|
USSR(Leningrad) |
Middle Cambrian |
|
Lophosphaeridium |
Lophosphaeridium spandum
|
USSR(Pre-Baltic) |
Early Ordovician |
|
Lusatia |
Lusatia sibirica
|
USSR(Vologda) |
Middle Ordovician |
|
Macroptycha |
Macroptycha
|
USSR(Pre-Baltic) |
Early Ordovician |
|
Macroptycha |
Macroptycha biplicata
|
USSR(Ukrainian SSR) |
Precambriam |
|
Macroptycha |
Macroptycha biplicata
sp. nov. |
USSR(Krasnoyarsk Kray) |
Late Riphean |
|
Macroptycha |
Macroptycha multiplicata
sp. nov. |
USSR(Krasnoyarsk Kray) |
Late Riphean |
|
Macroptycha |
Macroptycha triplicata
sp. nov. |
USSR(Krasnoyarsk Kray) |
Late Riphean |
|