Baltisphaeridium |
Baltisphaeridium visbyense
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium wenlockense
|
Nd |
Nd |
|
Crameria |
Crameria duplex
|
Nd |
Nd |
|
Cyclopsiella |
Cyclopsiella elliptica
|
Mississippi |
Oligocene |
|
Cyclopsiella |
Cyclopsiella vieta
|
Mississippi |
Oligocene |
|
Cymatiogalea |
Cymatiogalea ancora
|
France |
Llanvirnian |
|
Cymatiogalea |
Cymatiogalea bellicosa
|
Africa(Sahara) |
Early Tremadocian |
|
Cymatiogalea |
Cymatiogalea catherinae
|
France |
Llanvirnian |
|
Cymatiogalea |
Cymatiogalea columellifera
|
Africa(Sahara) |
Early Tremadocian |
|
Cymatiogalea |
Cymatiogalea cristata
|
Baltic |
Early Ordovician |
|
Cymatiogalea |
Cymatiogalea cristata
|
Belgium |
Early Tremadocian |
|
Cymatiogalea |
Cymatiogalea cristata
|
England |
Late Tremadocian |
|
Cymatiogalea |
Cymatiogalea cuvillieri
|
Belgium |
Tremadocian |
|
Cymatiogalea |
Cymatiogalea cuvillieri
|
Africa(Sahara) |
Early Tremadocian |
|
Cymatiogalea |
Cymatiogalea margaritata
|
Africa(Sahara) |
Early Tremadocian |
|
Cymatiogalea |
Cymatiogalea membranispina
|
Africa(Sahara) |
Early Tremadocian |
|
Cymatiogalea |
Cymatiogalea modesta
|
Poland |
Late Tremadocian |
|