Axisphaeridium |
Axisphaeridium tricolumnelare
sp. nov. |
Finland |
Middle Ordovician |
|
Axisphaeridium |
Axisphaeridium tricolumnelare
|
Finland |
Llandeilian |
Ashgillian |
Baltisphaeridium |
Baltisphaeridium brevifilicum
|
Finland |
Llanvirnian |
Ashgillian |
Baltisphaeridium |
Baltisphaeridium brevispinosum
|
Finland |
Late Arenigian |
Early Caradocian |
Baltisphaeridium |
Baltisphaeridium clavicinctum
|
Finland |
Late Llanvirnian |
|
Baltisphaeridium |
Baltisphaeridium constrictum
|
Finland |
Llanvirnian |
Early Caradocian |
Baltisphaeridium |
Baltisphaeridium filosum
|
Finland |
Late Arenigian |
Caradocian |
Baltisphaeridium |
Baltisphaeridium hamatum
|
Finland |
Tremadocian |
Early Arenigian |
Baltisphaeridium |
Baltisphaeridium hirsutoides
|
Finland |
Late Arenigian |
Early Llandoverian |
Baltisphaeridium |
Baltisphaeridium latiradiatum
|
Finland |
Caradocian |
Late Ashgillian |
Baltisphaeridium |
Baltisphaeridium longispinosum
|
Finland |
Late Arenigian |
Pridolian |
Baltisphaeridium |
Baltisphaeridium microspinosum
|
Finland |
Late Arenigian |
Llandoverian |
Baltisphaeridium |
Baltisphaeridium multiechinatum
|
Finland |
Late Arenigian |
Caradocian |
Baltisphaeridium |
Baltisphaeridium multipilosum
|
Finland |
Late Arenigian |
Llandoverian |
Baltisphaeridium |
Baltisphaeridium nanninum
|
Finland |
Late Arenigian |
Llandoverian |
Baltisphaeridium |
Baltisphaeridium pachyacanthum
|
Finland |
Late Arenigian |
Caradocian |
Baltisphaeridium |
Baltisphaeridium pauciverrucosum
|
Finland |
Late Arenigian |
Caradocian |