Baltisphaeridium |
Baltisphaeridium polytrichum
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium pseudhystrichodinium
|
France(Paris Basin) |
Senonian |
|
Baltisphaeridium |
Baltisphaeridium pseudhystrichodinium
|
W.Germany(Schleswig) |
Danian |
|
Baltisphaeridium |
Baltisphaeridium quadriradiatum
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium quaternarium
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium ramispinosum
|
Canada(Alberta) |
Late Devonian |
|
Baltisphaeridium |
Baltisphaeridium ramuliferum
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium ramusculosum
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium ramusculosum
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium ravum
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium rectangulare
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium reginaldii
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium rehdense
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium rigens
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium rjabininii
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium robustispinosum
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium robustum
|
Nd |
Nd |
|