Protosphaeridium |
Protosphaeridium
|
Romania |
Tremadocian |
Arenigian |
Synsphaeridium |
Synsphaeridium
|
Romania |
Tremadocian |
Arenigian |
Trachysphaeridium |
Trachysphaeridium
|
Romania |
Tremadocian |
Arenigian |
Leiosphaeridia |
Leiosphaeridia
|
Romania |
Tremadocian |
Arenigian |
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium minor
|
Romania |
Tremadocian |
Arenigian |
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium arenigum
|
Romania |
Tremadocian |
Arenigian |
Vulcanisphaera |
Vulcanisphaera frequens
|
Romania |
Tremadocian |
Arenigian |
Vulcanisphaera |
Vulcanisphaera nebulosa
|
Romania |
Tremadocian |
Arenigian |
Micrhystridium |
Micrhystridium shinetonense
|
Romania |
Tremadocian |
Arenigian |
Micrhystridium |
Micrhystridium stellatum
|
Romania |
Tremadocian |
Arenigian |
Cymatiosphaera |
Cymatiosphaera boulouardii
|
Romania |
Tremadocian |
Arenigian |
Cymatiogalea |
Cymatiogalea bellicosa
|
Romania |
Tremadocian |
Arenigian |
Cymatiogalea |
Cymatiogalea polygonomorpha
|
Romania |
Tremadocian |
Arenigian |
Tasmanites |
Tasmanites sp
|
Romania |
Tremadocian |
Arenigian |
Leiofusa |
Leiofusa sp
|
Romania |
Tremadocian |
Arenigian |
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium ianischewskyi
|
Romania |
Tremadocian |
Arenigian |
Goniosphaeridium |
Goniosphaeridium balticum
|
Romania |
Caradocian |
Ashgillian |