Baltisphaeridium |
Baltisphaeridium klabavense
|
Czechoslovakia |
Arenigian |
|
Baltisphaeridium |
Baltisphaeridium longispinosum
|
Czechoslovakia |
Arenigian |
|
Hystrichosphaeridium |
Hystrichosphaeridium longispinosum
|
England(Shropshire) |
Tremadocian |
|
Goniosphaeridium |
Goniosphaeridium uncinatum
|
England(Shropshire) |
Tremadocian |
|
Baltisphaeridium |
Baltisphaeridium longispinosum
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium chiggerum
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium chiggerum
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium uncinatum
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium uncinatum
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium mochtiense
|
Poland |
Early Caradocian |
|
Goniosphaeridium |
Goniosphaeridium mochtiense
|
Poland |
Early Caradocian |
|
Aremoricanium |
Aremoricanium deflandrei
|
Sweden |
Middle Ordovician |
|
Aremoricanium |
Aremoricanium rigaudiae
|
Sweden |
Middle Ordovician |
|
Baltisphaeridium |
Baltisphaeridium brevituberculatum
sp. nov. |
Sweden |
Middle Ordovician |
|
Baltisphaeridium |
Baltisphaeridium digitiforme
|
Sweden |
Middle Ordovician |
|
Baltisphaeridium |
Baltisphaeridium folkeslundianum
sp. nov. |
Sweden |
Middle Ordovician |
|
Baltisphaeridium |
Baltisphaeridium klabavense
|
Sweden |
Middle Ordovician |
|