Dictyotidium |
Dictyotidium dictyotum
|
Baltic |
Silurian |
|
Domasia |
Domasia trispinosa
|
England |
Silurian |
|
Duvernaysphaera |
Duvernaysphaera kraeuselii
|
Belgium |
Devonian |
|
Duvernaysphaera |
Duvernaysphaera tenuicingulata
|
Canada |
Late Devonian |
|
Estiastra |
Estiastra magna
|
Baltic |
Early Gothlandian |
|
Favososphaeridium |
Favososphaeridium scandicum
|
Baltic |
Middle Cambrian |
|
Gorgonisphaeridium |
Gorgonisphaeridium winslowiae
|
Canada |
Devonian |
|
Granomarginata |
Granomarginata prima
|
USSR(Estonian SSR) |
Early Cambrian |
|
Helios |
Helios aranaides
|
Spain |
Silurian |
|
Hoegisphaera |
Hoegisphaera glabra
|
Canada |
Devonian |
|
Kildinella |
Kildinella hyperboreica
|
USSR |
Nd |
|
Leiofusa |
Leiofusa fusiformis
|
Baltic |
Silurian |
|
Leiomarginata |
Leiomarginata simplex
|
USSR(Estonian SSR) |
Early Cambrian |
|
Leiosphaeridia |
Leiosphaeridia baltica
|
Baltic |
Ordovician |
|
Leoniella |
Leoniella carminae
|
Spain |
Silurian |
|
Lophodiacrodium |
Lophodiacrodium obtusum
|
W.Germany |
Cambrian |
|
Lophosphaeridium |
Lophosphaeridium rarum
|
USSR |
Early Ordovician |
|