Zonosphaeridium |
Zonosphaeridium conspersum
|
USSR(Russian Platform) |
Late Gothlandian |
|
Zonosphaeridium |
Zonosphaeridium fimbriatum
|
USSR(Russian Platform) |
Late Gothlandian |
|
Pseudozonosphaeridium |
Pseudozonosphaeridium lucidum
|
USSR(Russian Platform) |
Late Gothlandian |
|
Pseudozonosphaeridium |
Pseudozonosphaeridium corrugativum
|
USSR(Russian Platform) |
Late Gothlandian |
|
Protoleiosphaeridium |
Protoleiosphaeridium serpentinum
|
USSR(Russian Platform) |
Late Ordovician |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium
|
USSR(Russian Platform) |
Late Ordovician |
|
Protoleiosphaeridium |
Protoleiosphaeridium sp
|
USSR(Russian Platform) |
Late Ordovician |
|
Leiosphaeridia |
Leiosphaeridia pellucida
|
USSR(Russian Platform) |
Late Ordovician |
|
Zonosphaeridium |
Zonosphaeridium limpatum
|
USSR(Russian Platform) |
Late Ordovician |
|
Hystrichosphaeridium |
Hystrichosphaeridium borracherosum
|
USSR(Russian Platform) |
Late Ordovician |
|
Hystrichosphaeridium |
Hystrichosphaeridium picorricum
|
USSR(Russian Platform) |
Late Ordovician |
|
Hystrichosphaeridium |
Hystrichosphaeridium malum
|
USSR(Russian Platform) |
Late Ordovician |
|
Leiosphaeridia |
Leiosphaeridia ochroleuca
|
USSR(Russian Platform) |
Early Ordovician |
Late Gothlandian |
Leiosphaeridium |
Leiosphaeridium eisenackii
|
USSR(Russian Platform) |
Early Ordovician |
Late Gothlandian |
Leiosphaeridium |
Leiosphaeridium sp
|
USSR(Russian Platform) |
Early Gothlandian |
|
Lophosphaeridium |
Lophosphaeridium plicatum
|
USSR(Russian Platform) |
Early Gothlandian |
|
Zonosphaeridium |
Zonosphaeridium indivisum
|
USSR(Russian Platform) |
Early Gothlandian |
|