Protoleiosphaeridium |
Protoleiosphaeridium sp
|
Poland |
Cambrian |
Tremadocian |
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium operculatum
|
Poland |
Cambrian |
Early Ordovician |
Hystrichosphaeridium |
Hystrichosphaeridium longispinosum
|
Poland |
Late Cambrian |
Early Ordovician |
Acanthodiacrodium |
Acanthodiacrodium uniforme
|
Poland |
Cambrian |
Early Ordovician |
Trachyoligotriletes |
Trachyoligotriletes planus
|
Poland |
Cambrian |
Early Tremadocian |
Lopholigotriletum |
Lopholigotriletum sp
|
Poland |
Cambrian |
Tremadocian |
Acantholigotriletum |
Acantholigotriletum sp
|
Poland |
Cambrian |
|
Stenozonoligotriletum |
Stenozonoligotriletum sp
|
Poland |
Precambriam |
Cambrian |
Symplassosphaeridium |
Symplassosphaeridium incrustatum
|
Poland |
Tremadocian |
|
Leiosphaeridium |
Leiosphaeridium sp
|
Poland |
Tremadocian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium arenigum
|
Poland |
Tremadocian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium bifurcatum
|
Poland |
Early Ordovician |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium solitare
|
Poland |
Early Ordovician |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium papillosum
|
Poland |
Tremadocian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium duplicativum
|
Poland |
Early Ordovician |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium pungens
|
Poland |
Tremadocian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium zalesskyi
|
Poland |
Early Ordovician |
|